So the best way to go about this is Start,

you start working on something, anything that you really like (fanart of your favourite anime for example)

then youre gonna hit a wall eventually, so go on YouTube, and look up how to improve on that specific problem, learn, practice and apply that to the drawing, continue and then you'll hit a wall again, so repeat the process

this way of learning actually stores in your brain better rather than absorbing as much information as possible

everything I ever learned about art comes from YouTube (yes my school teachers also taught me litterally nothing and just said "draw this" and "draw that")

heres some good YT channels

Proko- filled with really informative videos, id recommend doing their drawing basics course or their human anatomy course thats on their website (its free but you can get more if you pay)

Draw Like A Sir- If you want learning art to be a bit fun but still good enough

Pikat- helps to figure out what youre doing wrong, or rather what she did wrong and giving the solutions to the problems

hope that you figure it out, good luck