It really depends, does your hair poof like crazy if you don't put any styling products in it? If this is the case, then it'll be REALLY poofy if you cut it because you'll be loosing what is "weighing it down". If you're hair isn't poofy then you could definitely pull off that hair cut, as long as you keep your curls! (which I LOVE!) I think you look great with your hair how it is now but if you REALLLY want to cut it (like you are 110% sure) than go for it!
I think it would look cute short and would look more tame. But I agree with what some other people are saying, you're long wild hair is like your signature thing. But there's nothing wrong with a change once and awhile.