What's the point of it

Do you ever feel like a part of you is missing?
Empty inside or lonely.
Or like the world is getting you down,
As if your not perfect,
And don't you just hate it,
When people underate you,
or laugh at you when you attempt?
I hate it, don't you?
Because I know I'm good enough,
But when I try to prove it,
They all critisize me,
Do this better, mor effort,
So what's the point,
Trying to prove what you can do?