I'm going on a field trip to Wild Adventures but I'm scared of roller coasters?

So, Friday I'm going on a field trip to Wild Adventure with the BETA Club. The only problem is, I'm afraid to ride most roller coasters. The only reason I agreed to go is because I get to miss school. I've been to Six Flags once, and I did like some of the rides like the Mind Bender and the Georgia Cyclone. I did endure the Georgia Scorcher, which my friend pushed me onto without any input from me, and the next thing I knew I was buckled into the ride, going way up, with no way to get off. I kept my eyes closed the entire time, hating every second. So, are the rides at Wild Adventures as intense as the Six Flags rides? It was my first time and only time so far at a theme park when I went to Six Flags, so could it have been just a first time theme park visit thing? I don't want to be called a baby by my peers, but I don't want to ride some of the rides. My friend wants me to ride the Boomerang with her, is it all that bad? Any advice to make me feel safer and how to enjoy roller coasters? Please help! And thank you for reading this far, I tend to type a lot. Any questions, just ask and I will try to answer.