I remember a lot of my classmates at art college quit art and animation entirely and studied something else once we got to the anatomy and gestural drawing courses. Rest assured that you will be a much, much better artist and tougher person in general compared to them once the practice finally pays off.
Monster8maker
Yes, that's really hard and sometimes it's like the boss from a Souls game where you've died thousands of times and still try.
i did it the other way around, first i draw monsters and slowly approach the anatomical rules
I'll send you something to comfort you to hug:
https://www.newgrounds.com/art/view/monster8maker/a-cuddly-banshee
or
https://www.newgrounds.com/art/view/monster8maker/goth-saria
I hope this is of some help to you