since you are obviously serious about Krita and this forum, as your profile shows, and have only been using Krita for a short time, I can and would like to recommend @CelticCoco’s tutorials to you. I at least like these videos very much. You can find the videos either here via the forum, in the section where you also found this video, i.e. Tutorials & Resources, just look for her avatar, the C in the red circle, on the right side in that section or you can use her Playlists on YouTube, where you can also find a few more videos from her.
The advantage of accessing the videos here via the forum are the comments and corrections to the videos, which are not so qualified on YouTube.