/ic/ - Artwork/Critique

I need help.
And not of the anatomical kind (though that is still an issue too and i am aware of it)

This took me way to many HOURS and see myself getting any faster, I am already about to make excuses like "well i am still learning to use my ellbow more instead of my wrist and i get anatomically ever better and i have to make sure stream is entertained and chat is engaged while working. I did not use a referencence and making low angle images look good is hard" but all these things do not justify me spending hours on what should be half an hour at most for a professional...
Issue is while i see myself getting better in most regards due to practice and understanding, i only see mself getting slower with the more details i try to take into account. I do not know how to practice "speed", I did figure drawings but never to a level where i say "okay this strikes a nice balance between anatomical correctness and time invested." I'm afraid when i set the figure drawing timer to lower than 5-6 minutes that i commit anatomy errors to muscle memory instead of learning anatomy + speed.

sorry for the wall of text, this really bothers me about my artistic progress. Hope someone can help :(