I Hate Myself

its like every good thing that happens, or anything that happens at all, there is a little voice in my head making it bad, that im no good, why would anyone want me, why would they want to be friends with me, what do they want from me cause obviously no one wants to be my friend, and i can't stop it, i can't understand why people would like me, or do things for me, i just want to be loved, but my head tells me i never will be