Feeling Trapped: My Parents Won't Let Me Move Out

Maybe it’s because my parents are religious and really strict but they say that i cannot move out unless i get married. And this upsets me because i want to be independent and live on my own but every time i talk to my mother about it she says that if i leave i will disappoint her and that she will never want to see or speak to me again. I understand why she feels the way she does but i don’t think she should limit me and kind of keep me captive at home my whole life just because she feels like it is what’s best.