What do I need to be able to perform to my full ability?

I have to the get that first tee shot on the fairway. As long as I don’t shank it, gotta keep my head down. My flight partners are so much better then I am, I’m never going to score today. Why did I sign up anyway for this competition? I couldn’t sleep last night either. Okay, I have to focus on my swing path now. thank god there aren’t many more people watching. I don’t understand how everyone stays so calm. Maybe try to focus on that swing drill just now, I totally don’t remember anymore how my good swing felt like. Honestly, I feel so scared to hit the ball ri