My Aunt and uncle won`t let me become a signer and actrice, and now i`m confused...?

my aunt won`t let me sing and act because she thinks it`s stupid and that i `m not good enough but all my teachers told me that i am born to do that... what should i do? i want to p an audtion but i can`t ... every nigh i just cry... can someone help me? ***(by the way, i don`t live with my parents!!!)