First notebook entry: Introducing myself

I am a Chinese girl from Guilin which is a beautiful place famous for its green mountains and clean rivers and lakes. I'm now studying in Xi'an International Studies University, and I'm an English major.
I've been studying English for years and I am able to communicate with foreigners with some simple sentences, but my listening is not that good. The reason why I want to learn and improve English is that in my opinion I am young and deserve to know the whole world. English is no doubt a useful and important tool to help me realize my dream. In additon, talking to some friends from other countries will broaden my horizon, helping me to get familar with many interesting things from all over the world. It must be a lot of fun and definitely amazing.

Wanna is a slang term for want to. We would say "many interesting things," or "much interesting stuff," but I'm not really sure why.