What should I do about my grief?

You should first try to get over the death of your mother and I know that will be difficult for you since you were obviously so close to her. Also, stop caring what other people think and don't consider moving out of town. I can't understand why these females you've been hooking up with you would call you horrible names or laugh at you. They sound very ignorant and spoiled and you should find a more mature and understanding female.