I am afraid of Roller coasters

I really am.

And I'm going to Six Flags Great Adventure tomorrow. For the first time in my life. And I already know several people who are going to drag me onto a roller coaster, whether I like it or not.

I'm excited, I guess? But I'm so scared!

What if I choke? Pass out? Throw up? Stop breathing because I realize the roller coaster is really, really high?

I remember the first time I rode the Jurassic Park ride at Universal Studios. It wasn't even that big. The drop was 50 feet. By the time the ride ended, I was crying because it was so scary and heart dropping. I hate that feeling.

I guess my worst fear is that I won't be able to stand it and start crying. That would be horrible.
And judging from the one all my friends are going to force me to go on, I think I'll probably start crying on the first drop. On the first one-fourth of the drop, to be precise.

Please don't let me die tomorrow.