I'm so sorry that happened.. please prioritize your immediate physical and emotional safety right now!! If you have injuries that are bleeding or if you feel you cannot keep yourself safe from self-harm, you should really reach out for professional medical care immediately. im so sorry that you felt like ending yourself was an option. and the fact she didnt comfort you , wtf? doesn't matter what you were reading, she should have cared and looked after you when you were hurting.
I hope these words help you but obviously I don't know. I want to tell you that I feel you, my parents are crazy homophobic, and one caught me reading SHOUNEN AI when I was a bit younger and beat the shit out of me . and yet, despite this, it's been years and my life is fine now. your parents won't always be the centre of your life! you (presumably,) live with your parents now, but life expands so much when you leave home (eg. spending more time at college, living/commuting to uni, getting a job). obviously, right now that may seem far away for whatever reason but it's seriously true! things change so fast and I'll read whatever the fuck I want! life changes so quickly, and this soul-crushing moment is only one part of it.

I was reading yaoi in my room luckily a tame one which is sunny days I was on chapter 25 right. But I later go watch baking videos and then my mother tells me to go to bed because its 3am and she like stop watching stuff in the dark that's suspicious and as the good daughter I am I try to show her then all of a sudden my tab switches to the yaoi so then I turn it of and she like open it I wanna see what it is and im like no please no so I turn it on and while she's reading it I go cut my veins so I can dies and PSA my parents are homophobic asf. So she comes in my room to me trying to cut my veins and I lock myself in the closet to kill myself but I eventually opened it because I have so much to live. And then she starts calling me dumb and not comforting me at all and i have told im suicidal before when i was like 12 and this bitch told me to pray on it. And later after that I thought I was pansexual for the past few years but now I think I'm asexual
Any thoughts on that.
Also she told me a story about how she had a professor in college that could not hold his shit and had to run to the bathroo