I was received this message yesterday ,what does it mean?

I thought we can't teach each other now.

Someone please tell tell me

Thanks a lot!

I want to learn speaking English .

If you teach me English ,in return I can teach you Japanese .

So, I'm going to weite down my introduction .

My name is saki .

Please feel free to call me saki.

I'm a high school student and second grade .

I'm good at reading English ,but not good at writing and speaking English.

I want to speak English fluently .

I don't know what to write here.

Anyway, if you can be my language partner ,tell me please.

I will keep diary everyday here.

Please correct this sentences.