НУЖНО К ОГЭ. ДАЮ МНОГО БАЛЛОВ.
Проверьте, пожалуйста, правильность построения предложений в моём письме по английскому.


Okay, it's really very unusual that you decided to learn Japanese! But I support your choice. If you want something, you need to do it!
As for your questions, in my school I study only English. But the English language with in-depth study. I also want to learn Korean, because I like watching Korean TV series and once I dream to visit Korea. And soon I will go to the Korean language school at the Korean Embassy!