Roller Coaster help?!?

Okay, I'm going to Hershey park with my friends. I'm starting to like rides that drop my stomach. If I go on a steel roller coaster at Hershey park, do you think the drop goes by fast. I'm trying to conquer my fears, I'm 13 and need some tips. I know I should start off small and I also act like/laugh like its fun and eventually it is. Any other tips though?