((((((((ChristenTheNight))))))))))))))
Welcome to PC.
I think I can understand (somewhat) about how you're feeling ... if it's any consolation, you have attention here, now from some people. Not a replacement for attention from family - the people who should love you unconditionally though

(my opinion anyways).
I can safely tell you that you are not worthless, and that you are not a burden. I can understand why you'd feel like that though, because I struggle with those two feelings an awful lot. It's not true though, those 'voices' and feelings are trying to hurt you but they are not the truth.
Everyone deserves love and attention, I'm sorry you're not getting it from your family. It is hard to search for it elsewhere too...
Please continue to post, and I'm sorry if my reply seems harsh ... I just want you to know that you are quite a worthwhile human being.
Welcome to PC - talk to us, we'll listen and try to help.