Strict family

This spring and summer I want to go on vacation with my bf and another with my best friends. My parents r sooo strict. I’m legit 21 and they won’t let me do anything since I’m “under their roof”. Out of all my friends, I’m the only one who can never go away to any event out of town... Idk what to do... I’m afraid to go regardless, I don’t want to make them never forgive me or hate me. *edit* I’m a full time college student and work only twice a week because of school... I don’t dorm either. I live at home.... :( and I live in NYC so apartment rent is $$$$$