Why Do I feel this way?

Sometimes I want to live
Sometimes I want to die

Sometimes I want to cry
Sometimes I want to laugh

Sometimes I want my mom dead
Sometimes I want her to live

Sometimes I feel unloved
Sometimes I feel loved

Sometimes I feel everyone hates me
Sometimes I feel everyone loves me

But all the time no matter what I feel I'm in pain.

I just want to know
Why do I feel this way?