Translation of Mittelschule

I try to learn English as much as possible so that I can travel next year to the United States. I would agree to your proposal but I also need to find good teachers. My goal is quality and speed.
Somehow, my email was not sent. There were even a few mistakes, but really only minor things, nothing really bad. I've already read some other texts that you have sent and are getting better each time.
Listening to music is my passion. When I am at home, I like listening to music. I love nature, eg the sea, vast fields, snow-white mountains and deep valleys. I love to hike in the summer.