Forget sadness and sorrow

I couldn't wait to add another thing. I came from English class, it was a very unhappy class.
I wrote this:
English, What is that? It's a nice language but it's difficult to me.Why? Because I'm not clever, I wish to can speak/talk/write very well. Usually I'm angry with me because I do everything wrong and I don't understand a lot of things.
I'm tired of that, Why I can't be perfect?.
I know I'm crazy, but I can't change that feelings. I hate me because i can't give more of myself.
Why doesn't appear the happy day?