i do this too constantly ive kinda stopped worrying about my skill level or whether i finish the project i just start and see where it goes i will always have a life of a million unfinished projects but ghats okay because eventually i do end up gaining enough skill and practice just by messing around that i do finish a few and often they come out really well im certainly no van gogh but a whole school career of mindless doodling and some intense periods of hyperfixation on painting and drawing actually have made me a halfway decent artist adhd people grab the how to book off the shelf and start in the middle and then read every page out of order thats fine it just takes longer until youve filled in enough of the gaps to know the skill functionally often this ends in a better understanding of the subject by the end because you had to figure a lot of it out on your own and you understand it in practice not just in theory