なのでそれほど?なしかできません.
Changed several places.
I don't usually work hard.
I don't know who you are writing to, if it's a friend, it's ok. If it's an interview or if you don't work hard with people you don't know very well, it's best not to say it in Japanese, then I'll help you change it into a useless opportunity.
Then, from the perspective of grammar, I move everything that introduces myself and my interests to the front, and finally I say that my Japanese is not very good. It just looks simpler and easier to understand.