SHE is DRIVING ME ISANE.............please please help!!!!?

ok ive been on my own for two years but there were some issues with a house im trying to get and my lease ran out i have to stay with her for about 4 months! Im 25 yrs old so im not a kid but every time i go out with friends she gives me a lecture about the birds and the bees and "only girls with bad reputations stay out past 9pm" no i realize she is from a different generation but its driving me nuts.......Im not kidding here she trys to give me a curfew and bed time!! IM 25 YEARS OLD!!!! how do i nicely tell her to lay off? she asks about my life and gets very upset if i dont tell her, its not any of her business....she doesnt ask in a nice way its more accusing since im not married. heres the catch my father left her a few years agoso she is all alone and im pretty sure she is going through menopause. so if i say one thing wrong it sprials into "you dont love me, you dont care about me" all that stuff