What is the main idea of the poem below? Please tell in 4-5 lines

Closed Doors
By: Jane Kirby
I cry myself to sleep at night
Just wishing it would stop.
Maybe tomorrow it will cease.
Then again, maybe not.
You push me and you poke me.
You call me hurtful names.
To me, it's like a prison.
To you, it's fun and games.
Your heart is made of ice,
But it doesn't even deserve that.
Mine was once a rainbow,
But you have molded it to the darkest black.
I hate you; I hate everyone.
There is no one I can trust.
Are you proud of what you've done?
You've turned my soul into dust.
I wish there were a door I could open,
A simple path I could tread.
I don't want to be stuck here forever
In this endless spiral of dread.