I couldn't ....

I couldn't consentrate taking a class at school.i had tried fix it but i didn't any more.
It cannot be help but i'm going to sleep earlier than usuall because if i don't consentrate again it'll waste of time.also,after school i went to the library to make a essay but i didn't finish it and then i have to go to library tomorrow again!!!!!!!!!!!

I'm making a ''The history of Tap'' essay!!!It's not annoyed for me.i hope that it'll be a nice one.

TONGA