If you are an adult, please stop blaming your parents and every unfortunate thing that has ever happened to you in your life for your (fill in blank: sour personality, boorish behavior, addictions, weight loss, weight gain, racism, ignorance, blah blah blah). If nobody likes you or wants to be around you, I hate to tell you, but it's probably YOU.
If you are over 18, you are overdue to begin the process of growing up. This includes taking responsibility for your own behavior. Ask for advice, get help, whatever it takes -- but GET OVER IT! I'm sincerely sorry you had a rough life; my childhood was no bed of roses either, but PLEASE . . . you can't change the past and no one but you wants to live in it with you.
"Tell me, are you incapable of restraining yourself, or do you take pride in being an insufferable know-it-all?"
"Honey Badger don't care!"