Well, ultramar has already pointed out all the helpful things I could (or couldn't) have come up with. It's true. When you're feeling bad about yourself you feel bad about others as well, because you're so sure that you're a bother to them and they don't care about you and all the rest of that unpleasantness. Your feelings aren't perfectly accurate all the time. In fact, I think our minds tend to lie to us quite often, tricking us into mistrustfulness and loneliness and self loathing in a twisted way. I suggest you show it the finger and refuse to believe those feelings, although that's much easier said than done