Ballet? And Hurdles? Question?

So I've taken ballet for 10 years, and toe (pointe) for 2 (maybe 3 i cant remember). I'm 5'8" and 135 lbs. I'm in 8th grade. I want to do hurdles. But I'm really shy and have a fear of people watching me compete. I would not like people watching me even practice. I've tried hurdles a couple times for gym, but idt i had the right form. I really enjoy doing jetes (ballet leaps). and yeah i know leaping and hurdles r completely different things but do you think I'd be any good in hurdles? Also how do i overcome my insercurity? I hate people/crowds watching me. Should i go out for track next year at the high school? I'm kinda fast..not really..and I'm really out of shape. I can do a 12 min mile. Idk how well i am at sprinting. I have long legs. How do u correctly go over the hurdles? Sorry for all info but itd really help me. Thanks a bunch!