[PouncingAnt]

I agree with Nagoyankee, but I'd also like to say, you're Japanese seems to be good enough to pick up some pen-friends/email friends. Doing so will let you you increase your vocab a lot. The more pen friends, the quicker you learn.

You've not really said much about in what way you need help.. It's hard to tell how much vocabulary you know, how much grammar etc. Or whether you need a tutor.