Useless?

I'm useless I know it.
They say I'm not, but they cant prove it.
Sinking down I'm going to drown.
I'm not going to feel pain for anyone,
This life isn't even worth living.
So much shit I cant take it, No one can change the way I see it.
I cant stop thinking like this, Why was i born in the first place...
I cant always find the words to say, the ones that make you want to stay.
I try my best, but I cant say what happens next. Its not my fate, but ill die for your sake.
I dont wanna let go, wanna hold on even if your cold.
If there was a reason its you, The one thing stopping me from cutting deep down was you.
I want to let go, but I cant say good bye, The hardest thing iv ever done and i cant tell you why.
Let me give up let it end, I wanna feel pain just before i never see you again...

Why is saying good bye to you the hardest thing iv ever had to do....

something i wrote when i was angry...
I'm in no trouble...