>>6019166you greatly overestimate the number of "talented 15 year olds" that are actually good.
most kids that can draw well usually do because they drew since they were able to and were researching on their own as much as they could how to actually improve, either from youtube videos or books.
those child prodigy artists are also a lot of the times frauds or they were forced by their asian parents to take classes with a tutor since they were 5 (like piano fags)
best advice for a perma beg like you is to JUST DRAW what you like and eventually you will start to look on your own for information, no matter the type.