I think the obvious advice is really good. "Pick up the pencil, look for reference, and draw what you see, practice and have fun", but many times that will get you art blocked, and that could affect your practices and therefore your improvement.
I have some expirience as an illustrator, but i think this tip could be applied easily on any other aspect of your life (at least it does for me)
Fail as much as you can, in every piece you do, try to embrace your mistakes and keep drawing until youre DONE.
Dont just stop something you already started because you noticed something was wrong, embrace that mistake and finish no matter what.
Once youre finished then youre allowed to think about your mistakes, many times those mistakes dont actually ruin your drawing as much as you initially thought, thats part of "trusting the process", but still you need to see what worked and what didnt and correct yourself in the next drawing you do.
Something else is that you really need to have a good balance of the mentalities of "having fun" and "trying to improve" make drawings for both, but never mix both mentalities or you could frustrate yourself more often.
TLDR: Fail fast, but improve faster i guess