yeah i think i get scared when i feel too much pressure on my wrists. i tried training this one time by doing a handstand with stomach facing the wall, using my feet to gently push off, and then flexing my wrists hard to make my feet come back to the wall. i would do this for a few reps. are there other good ways to isolate this?
Nope, that's the way to go.
Lots and lots of wall handstands with the body facing the wall.
Don't feel bad... I still have to work on mine too honestly.