After an hour I finally got my turn to ride the roller coaster.
Why did you decide to wait for an hour?
I like experiencing something new, but I didn't like the look of the roller coaster.
It's good to try new things, if you really want to.  But if you have your doubts about something new, there's no shame in passing it up.  In this case, though, I imagine that you ultimately enjoyed riding on the roller coaster.
I rode on it once but yeah it was great!
It is okay to be nervous about getting on a rollercoaster but it's great that you decided to try it.