Scared, confused and Idk what to do

So, I’m not a virgin anymore haven’t been since November. But my mom had me so much pressure over my head to be her perfect little golden child because I’m fr first to graduate and go to college of six(I’m her fourth child third daughter) and im absolutely petrified to tell her because I know she’ll get mad and blow it outta proportion and won’t talk to me. I wanna tell her but i know for a fact she’s gonna day stuff and curse me out and all me names. My older sisters lost theirs when they were 15, I’m 17 and I’ve been wit the same dude for almost a year now. She already doesn’t like him over something that’s her fault and i know this will make it ten times worse. She’s gonna try and make me come back home but then again I start my freshman year in college tomorrow and if she makes me go home I won’t have a way to school anymore. Idk I’m just really scared to tell her because when she hears something she doesn’t like about me specifically she gets unreasonably angry and hurts my feelings. So I’m scared absolutely petrified to tell her and idk how. I can’t tell her to her face because I know she’ll lay hands and probably will take all her frustrations out on me 😭😭😭

UPDATE: I told her and not that I’m seeing these comments I definitely shouldn’t have. She’s not talking to me and on top of that she’s refusing to complete my financial aid or help me out with my school stuff 🤷🏽‍♀️ she said it’s not about me losing my virginity but because I “mad her out to be the bad guy” when in all reality everybody sees the pressure she puts in me to be her “golden child” but I guess that hurt her feelings that I told her that and she cried to my older sister about but hasn’t said anything to me and like I said before she’s kinda screwing me over now. I did a lot for her since I started working and because she took something the wrong way she’s screwing me over and I kinda need her rn.