give youserlf a try, get some of friends house to stay there for 30 days, let you gparents be sure that you are not going to change your opinion, then make this trial. This is easer than move out forever and strongly believe during this period most of your fears will fly away. You said that you are working, don't you make enough to rent a room? Or find a gfriend and stay at her home
But stop burning yourself in environment you been described.