A Vicious Circle of Suck

My forms and combinations suck! I know I'm doing a bunch of things wrong but I can't do them in front of people to get corrected to do them right and when I have to do them in front of people in class I start doing random basic things wrong or completely get confused and start doing the wrong form halfway through.  I have this total paralyzing fear of being watched doing kung fu which seems to render my limbs useless, this also happens when I spar too, I seem to just get hit alot.  I was told it is a bad example for me to organize the demo and not be in it.  That makes me feel bad but it makes me feel much worse the thought of having to do kung fu in front of everyone.  I'm going to try to do a self defense thing for 10 seconds, I hope I can at least manage that.  I used to even try to be farthest away from the benches if there was anyone there watching a class.  I don't know why I have this irrational fear, I just do and it sucks!