i struggle with my cast handstands ( lean too much over the bar blah ). everyone has a skill they struggle with! its okay but indeed frustrating. when i first started learning kips i did alot of shoulder strugs every night on something i could hang on ( i had a chin up bar) and also did jump and get to front support w/ straight arms ( i'm not a coach but that may seem to be a good drill to do for your situation?) on the bar along with repeated reps of leg lifts and ab stuff! you'll get it, don't worry!