I keep hurting the people closest to me?
You feel miserable. Why do you think you hurt people that are closest to you?
I'm just not very nice to them.
You shouldn't hurt those closest to you. They will eventually leave you. You should try to find a way to be better to them.
Why don't you just mind your own business.
I am just here to give my two cents on the matter as it seems like you really need it. I feel like I care for you and you're turning me away and that is not a healthy way to deal with things, as if you continue to do so, you will feel lonely and find that you have no one to talk to.