It's why you always have to look back at your first terrible cringey drawings (or writings) even when it causes you physical pain so you can see just how far you come XD
if the act of drawing itself is causing you physical pain you should probably review your setup and/or figure out how to work around any health issues
It's a psychological struggle with what you want it to look like inside your head versus the accepting the abomination your hands are only capable of. Life.
Oh well that's just a case of keep getting better. Which will happen through sheer repetition even if you're not actually working on specific skills, it'll just take longer.