How can I become a better cheerleader?

Ive been cheerleading for 8 years now. It's really fun and I love it! I'm one of the main tumblers and flyer. But, of course I have my flaws like not locking my knee, being scared to flip or stunt. I am working on a full twisting layout, I have a layout,back tuck,backhandspring,etc. Can you please help me?