So i met this girl the other day. Ive been talking to her and texting her for the past few days. I really like her.

She just asked me if i want to go to the carnival with her and her friends and i said i couldnt go because i had other plans even though i dont have any plans. I just really hate rides aswell i wouldnt know anyone there. I decided for those 2 reasons i would be out of my comfort zone and didnt want to look like a baby clinging for dear life while were on the rollor coasters.

Am i an idiot for turning her down or should i just suck it up and go and tell her my other plans fell through?

Thanks for any opinions!

I'm sure they have things there other than rides... nothing frustrates me like a good ol' carnival game that is damn near impossible to win no matter how close you get or how much money you spend on it.... and when you do win, you get a stuffed animal you either end up giving to someone else or it ends up in your attic . But seriously, carnivals can be fun. It's a good opportunity to befriend new people and score some points with her friends. Just be laid back and have a good time.
Sometimes you have to step out of your comfort zone in order to expand yourself. Get some new experiences and live. Even if you look like a "baby clinging for dear life", who cares? Everyone is there to enjoy being out and enjoy having company. No one is going to hound you for the rest of your life on how you reacted on a rollercoaster... unless you have my friends haha.
That is really up to you. You said you had no other plans, so do you want to sit there and do nothing (assuming you make no plans) or do you want to go to a carnival with a girl you like?

It's OK to turn her offer down like that. If you have done it correctly, you have displayed that you have a (social) life and are a busy man. This is certainly not lowering your value in her eyes. Call or message her in two or three days to set up something with her. Ask her for a drink. You may want to mention that you are available for example Wednesday and Friday and that you already have plans for the other days. If possible massage her the day you want to go for a drink: this comes down natural and spontaneous, they like it. If she says she can't on Tuesday, than she probably has other plans and is not flaking. No big deal at all, just tell her "ok, then we will talk before Friday'. Big chance that she will be very responsive to Friday
In the meantime, keep gaming others.