How to get over my fear of heights + scariest roller coaster at SFOT?

OK first of all DO NOT close your eyes, but don't look around you either, when you go up on the ride concentrate on your hands or something just don't think about the ride. When you think you can just ride the smaller rides well doing that and get a feel for them. After a while you will be able to handle them better. And don't let your friends talk you into riding something you don't want to ride. (Unless you really want to ride them you will never be completely comfortable with them)