I used to get really bad stage freight, (i guess you would call it) my first year of cheering. What I did was ask girls who have competed before, like how it works. I had never been to a cheer competition before and I didn't know what to expect. After gathering what I needed to know I made sure I knew my routine and wasn't confused at what count on stood up on from a backhandspring or something. I practiced in the mirror and did it in my head while I was going to bed. On the day of I would eat a healthy breakfast, get ready and made sure I had enough food and water for the day. I basically just made sure I was in the competition mindset, and I had to focus on what I was doing. I have ADD and sometimes I am not always focused on things. You just need to make sure you are completely focused because in the warm up area, it's not the same at practice, you only have a short amount of time. While we wait for our turn to go on stage I go through my counts in my head. I take deep breaths and make sure my shoe laces are tucked in, my spanks are down, my top is adjusted, my bow is straight. I still do all those things while waiting for our turn. We used to have a front spot in my group, and i got into the terrible habit of not breathing while stunting, so she would always say "Breathe!" when she could see me turning almost purple, hahahah. Other than that, you just have to go out there and act like you're at the gym and there's not a thousand people watching you. Hope this helps :)