Seconded. As developers, we're familiar with a "feedback loop" e.g. with Test Driven Development. Write a Test (high-level description of feature), write Code that makes the Test work, repeat. Same thing with drawing: do a bunch of them, compare them to what you were expecting, repeat.

Also: don't take it seriously. At all :) Just do a bunch of drawing and it's all good :)

my IG https://www.instagram.com/johnlmitchell/