Why'd I Even Think I Could?

I can't wait until I'm eighteen,
I'm so excited to wipe this slate clean.
I have nothing to leave back here,
If you want me to stay, you can kiss my rear.

You've made my life a daily hell,
You pushed and pushed and pushed until I fell
So now I'm down
You don't care, you don't even frown.

Strong is the only way I've stood,
I'm sick of it now... why'd I even think I could?
I'm just done being strong,
Why is that so wrong?