Translation of zusammenschlagen

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.
The fact that I have received many emails from students in order to make Vocabulix known is a personal success for me. But I think that a new website with many pages would be better for future uses.
I now live in Spain. I have moved too 2 years ago. I have finished my studies and in February I'm going to high school. I have not spoken German for a long time, actually since I was a kid.