Hey, don't worry about it too much. Probably a few bits of grammar or phrasing that could be tweaked, but it's perfectly readable as-is. I spent four years teaching English in China, so I've got a pretty good feel for the various levels of English fluency in non-native speakers - you're doing fine, trust me :)

Really, about the only thing that tripped me up reading that was the German quotation marks, and that's just because I'm an American :)

Congrats on your progress, and thanks for sharing your story. Good luck in the future!