Figh Dollah Figh Dollah, me love you lonnnnnnggggg time, nummah one suckie suckie...
Get over them, they are only words. They can not hurt you unless you allow them to. Being hit with a bat does damage because your body suffers trauma. Being joked about can only hurt you if you give them that power.
If I had a dollar for every time I heard a mafia, greaser, macaroni-eating, deigo, guniee, wop, etc. slur I'd be rich. I am however still poor and proud to be Sicilian. The words don't hurt because I do not give them the power to hurt. I just smile at the person's ignorance and go on with my life.
Stop expecting for someone to hold your hand and make the world stop being mean. The days of scraped knees and milk and cookies from mommy to make it all better are over. Be proud of who and what you are and live life undaunted... that is truly the greatest revenge of all.