That seems pretty unfair to the people that care about you. They might not even be family or close friends, but might be acquaintances, distant co-workers, or people you see on the street. They get happiness out of interacting with you and having you with them. It doesn't seem right to take that away from them.

It sounds like you might be in a bad place mentally. I'm sure that it wouldn't hurt to talk to a professional. Worst case, you spend an hour or two and maybe a co-pay and still feel the same way you do now. Best case they may make every day a little bit more bearable.