Well based on the picture I see of you your hair is very pretty, but if you want a change add layers or maybe some bangs. Not across the forehead bangs, but just one the front of your hair gradually get shorter!
I think you look lovely with long hair.
You should get like a modern bob I think it would look adorable!!
Well maybe you should get layers and some cute side bangs to tie it all up. But hair cuts really depend on your face shape.
You can go to this site which helps you to make up a good hair style for you. It also tells which hair styles suit your face shape.
Here is a site that shows just about every hair imaginable. Hope this helps. www.ukhairdressers.com