I have the same questionâŠ
The usual way gone for centuries? So, practice, practice, practice, yes, that has never changed. 
Today you have the freedom to choose to learn only by yourself or with help of a teacher.
But the good thing these days compared with the regiment artists were under in the medieval is, you can choose your teachers freely, or you can rely only on books or videos out of the WWW, especially YouTube has a huge amount of materials to learn of and from. And what you want to paint is absolutely up to you, the âold mastersâ were drilled as if they were to go into a war, they had to do what they were told not what they wanted to do, so have fun, search for things you find interesting and go.
For YouTube, go and use their search bar and try to search for âKrita beginnerâ or other things that are of interest for you.
An excellent series of tutorials for Krita can be found in the channel Blade & Quill from our forum member Corinne @CelticCoco, of course also very good videos can be found in Kritaâs own channel.
And, and that is not a joke, there is a small tutorial series which was made for Kids 35-part Krita course for kids, but I think not only suitable for children, and when you can look over this fact that the intended audience is differently âaddressedâ, then this series can be great for you, especially if you have a learning disability, AHD or things like that, because there you get information in small and good understandable pieces.
BUT, begin with small projects, refine your skills bit by bit, to not disappoint yourself because you canât finish something the way you imagined. It is like in school, first you learn the alphabet, then youâll learn to write some words, and after some years you write an essay, not the other way around.
AND stay away from those who tell you stories of the kind: âyou only need to do this or that, and youâll be a top artist in no timeâ, âyou only need my brush PaintWonder 3000, and you can paint anythingâ, these are fairytales, and especially the last kind is usually a very expensive one for only learning how you got betrayed. Yes, there are some very good tips out there that will make things more easy, and of course you can get good brushes, but especially for Krita the best brushes are free, at least since the âExpansionâ Pack for Krita 5.x can be downloaded for free (and in the resource area of our forum you can find so many more (of different quality)).
But you donât necessarily need to search for other brushes, because even Kritaâs stock brushes are excellent, and perhaps it is better to not confuse oneself with too many choices in the beginning.
I hope you will get a lot more tips from other users too. And do not forget our forum search, which is the small magnifying glass in the upper right of the forum pages and of course not the Krita manual which is an excellent-written guide through the jungle of Krita and describes many things in detail, you can call it directly out of Krita with the shortcut F1.
Michelist
I moved your topic because itâs not a tech support question.
One thing that helped me was to remove friction points - those annoying little things that get in the way of practice time.
Keep your tablet accessible. If you have to pull it out of a drawer and plug it in, that might hold you back from using your tablet when you only have a short time available.
Keep a list of things youâd like to draw. That way you can use 15 minutes here and there without wasting time figuring out what to draw.
I feel very lost about how to practice.What should I do to draw a person well?
Oh. You need to start with the basics first. Like, you need to learn to draw shapes accurately first.
Is it possible to automatically add a cross to a circle?
We canât make you paint, you are the one who has to begin, not we. Begin small, stick figures are not wrong, they are a base.
And as I said, open YouTube and enter what you want to do into their search bar to get hits en masse.
Then begin and watch them, if you dislike a tutor it is no problem, stop the video and search for one who pleases you, because that is more important than many think, if you dislike your teacher then learning is no pleasure, on YouTube you can choose your teacher freely!
But there is one thing we canât do, we canât make you learn, you must do it yourself. This tip with YouTube I gave you already in my first posting, but you are the one who has to try it! â
Here I simply asked YouTube: âHow to draw a person?â, and these are a few hits, the first one seems to be good because with 24 million views it has more views than all the other links together! But the first 3 are only shorts, so okay but not really what you are after!
So, from here on you should find reliable information and not only a few informative breadcrumbs. By the way, Proko is among the most praised tutors out there, and that is for a reason, perhaps you like his style:
Michelist
Drawing a cross isnât that hard. And you donât even need it to be perfect since it is just a guide. Most, even me, would just would just draw that hastily. So there is really no need for such a thing. Such a thing would not help you draw better in any way.
And as I said, you need to be able to draw shapes accurately first. You canât draw anything decently if you lack accuracy and canât even draw a cross in a circle.
Like, just try doing circles, squares, curves, cubes and various basic shapes first. If you can draw such shapes comfortably, then you should be equipped to tackle more complex shapes.
By the way, can even draw well traditionally, like with a pencil or pen?
The shaking issue I experienced while using the pen has improved significantly.
Simple shapes like squares and triangles are fine, but circles are really not my forte.
Then you know what you have to practice.
Michelist
I have a really silly question: How can I practice drawing curves?I feel like Iâm not making any progress if I just keep drawing circles.
That is probably an issue of understanding of how learning works. Learning is repetition, and you repeat something till the day you master it, in principle like in school. There are countries in which you have to repeat a whole class if you do not reach the goals set for reaching the next class. And you did it when you learned math, or writing, you repeatedly wrote the numbers and letters till you mastered them, then it went further, and painting is nothing different, you learn something till you master it.
Because when you think about it, what have you won when you can paint a person from the toes to its neck, but then you canât draw the head because you refused practicing it.
Learning, nearly no matter what, is usually repetition, and those artists among us who recognized this and want to get and stay good at something they will practice their whole live on, especially artists are freaks of self optimization and therefore practice, practice, practice - at least the good ones.
Michelist
How is that not making any progress? You canât draw circles before, now you can draw circles. That is progress. And that would not only help in drawing circles but draw round shapes as well like ovals or part circles.
These are the basics. You practically canât draw anything if you canât draw these. How could you draw a human figure when you canât even draw a circle? It doesnât even to be perfect, just that you are comfortable in drawing them, that you donât struggle to draw them.
I also ask if you can draw well with pencil or pen because I want to know if you just lack the skill or you are struggling with drawing using a tablet.
This is something that everyone has to struggle with. Again, drawing basic shapes first would help. Again it is about being comfortable, being familiar with the new medium to be able to draw accurately.
An advice from me would be to keep your hand relaxed. It seems from you drawing that you are like forcing your hand to be steady by drawing slowly. That is actually the worst way to do it. Drawing slowly actually makes your lines less steady. You actually have to be relaxed and fast.
So, instead of drawing a circle slowly, draw the circle fast and quick in a flick. Ignore my first comment about accuracy, that could come later, you need to be able to draw first with confidence. Just draw circles and basic shapes and lines first. Just draw them quickly. Draw hundreds of them. They donât have to be perfect. You just need draw comfortably, relaxed and confident with your lines.
Even when drawing with physical pencil or pen? Then you need to practice more. Human figures are full of variations of circles and part of circles (like the eyes, the ears and even hair). If you struggle with drawing circles and curves then you would struggle with even more complex shapes of the human figure. There is no way around this.
You donât need to draw them perfectly or draw them monotonously like drawing circles in a row. You can draw fun stuff with basic shapes. Stack various circles to for a snowman, or arrange them to form a flower. Draw decorative designs and patterns using basic shapes. Draw an abstract composition. Draw smileys and cartoon faces. There is so much you can do with just the basic shapes.
Remember that perfection is not the point, it is about being comfortable. Accuracy would just come along as you become comfortable and familiar with drawing these basic shapes.
Is drawing curves the best way to practice drawing curves on a tablet? Should I buy a friction-enhancing screen protector?
Take four strips of tape and attach a sheet of paper to your tablet to see if it works the way you hope it will. For testing the effect, it will be good enough, I used that too, for about a few days (two?) and then scrapped it. But honestly, I only know one person who uses a screen protector like that (and he says it was a waste of money).
Michelist
Yup, keep at it. Have fun with it. Looks like youâre making progress.
When Iâm drawing on my computer, I watch the screen as I draw, are you doing it like that? Then the eye/hand coordination starts to come naturally after a while. 
Maybe do some coloring on the computer too. Iâve read that the reason why children are given coloring assignments in school is to develop the eye/hand coordination and thatâs a fun way to do so. So, color in your shapes as if you had crayons with coloring book. The point is: enjoy the learning journey. 