Help beside my poem?

You Think you know,
But you dont,
You think you keeping,
But you dont,
You think you work out,
But you dont.
You think you're different,
But you're not.
Because you really DONT thought
You really DONT understand
You really DONT know.
So why pretend?Help beside my poem?
Wow. This have punch!
It might work even better with this finish:
But you're not.
So why pretend?
Sometimes less is more.
at the conclusion it should be so why pretend dee-dee-dee
to be my friend

you stayed
but you strayed
you lied
and you cried
but i didn't care
be crust it wasn't fare
So i took that shot gun daddy kept out back
loaded it contained by my pickup truck in a gunnysack
I don't know what open-handed of help you want beside this poem unless it's an ending. Like hatchetm said----
So why pretend
to be my friend?