what do you think about my english?

I feel similarly to you - I'm bored of England and want to visit Germany to improve with the language. So there are always people who would want what you have!

Your English is very natural and colloquial; I can tell you've worked hard on it. The best way now is immersion - try to read books in English, listen to music in English and speak to people in the language as much as possible. As for the states, it'll be more fun to find out everything yourself. Oh, and don't drive on the left.

Have fun!

There's nothing unfortunate about being from Germany. Your English is quite good overall (much better than my German!). Here is what you wrote with some possible corrections (disregarding slang like "wanna" and multiple question marks, which are fine for informal situations):

What do you think about my English?

Hi, I'm from Germany, but this summer I'll go to the USA for half a year. Now I wanna know if there's anything I have to know about the USA (what's important) and where I can improve my English. (Do you know some web pages, etc.?) And yes, what do you think about my English???

Oh, and enjoy your stay in the USA!

Your English looks fine. When you get to the US, you will probably make some friends that will teach you a little more casual way of speaking than is typically taught in schools in Europe. But your English looks fine. Have a great time in the USA!

You are great at english! And, Germany is awesome! Don't be ashamed about living there!

First off, you do not have to ask for ice when you order a soda at a restaurant unless you get a canned soda, then ask for a glass of ice. Also, when you ask for water, you don't get mineral water, you get tap water. That was all I could come up with at the moment.

Why would it be unfortunate to be from Germany? Its a great country. Enjoy your stay in the U.S. your English seems fine/passable.

Hii only has one i, so you should say Hi, ... other than that..

You'll be fine. America is a terrific place. Come visit Michigan! It is the greatest state ever, so many lakes and forests, its amazing!

I don't think you need to worry about anything,

your English seems really good.

You should try to learn some slang words,

they're used quite often and you don't want to get confused if someone uses it.

:D

If you help me learn some basic German, I'll help you brush up your English. It sounds pretty good already. :-) Email me lol

huh?