Some of the things that have helped me are
1: watching tutorials on youtube and actually following them to draw the same thing as best as I can.
2: trying to draw a copy of another drawing/image I like. Tracing is fine at first, but eventually you want to work on doing it without tracing. Sometimes I’ll pause an anime I’m watching at a scene that looks cool, and just try to draw the scene as closely as I can. Just a warning, it should go without saying, don’t post your copies without also posting/crediting what you copied. In fact, I would recommend getting permission from the artist before posting your copy anywhere at all.
3: when drawing something (or copying something), I now focus on light and shadow, rather than just shapes/outlines and colors. Outlines can still be used if you’re going for a cartoony look, but it’s the light and shadow that makes an artwork stand out (not counting abstract art, which I have no advice for). If you look at most cartoons, even the most flat-shaded ones still make use of highlights and shadows to define the 3D shape of things. I think most tutorials will also focus on this, so if you do #1 above, this will start to be ingrained, but I think most good artists see things this way almost naturally (can’t say for sure, since I’m not a good artist ) so they don’t always talk about it.
4: Just draw! If you enjoy it, just draw what you enjoy. Practice by itself doesn’t make perfect, but it does help, especially if you keep trying new things. Learning new techniques can make drawing more fun, but if you ever get to where it’s not fun, just take a step back and try drawing something you’ve drawn before and enjoyed drawing. Since you’re not doing it for a job, there’s no pressure to be great or produce new things.
One last thought that might help: think of a story with what you draw. The drawing doesn’t have to tell the story, but I think it’s easier to make an interesting artwork if the person or the place has a backstory, or the character is doing something that you understand in your mind, even if it’s not clear in the artwork itself.