Mother problems

So I'm 19 and my mother and I have never had a healthy relationship. We are very poor and live outside a small town so we can never go out to other places for a break from each other, and this has caused escalations in many arguments. This means that we are basically in the same room with each other 24/7 for the past (we'll say) 14 years.

My mother is very verbally abusive, and has no healthy coping mechanisms for any of her issues. This means that she is constantly screaming at me and around me for any reason that sets her off. The reasons can vary from literally anything-she's too hot, her friend said something, she's too cold, she doesn't know what to eat, etc. I have tried to always ask her to stop yelling at me but she always takes my asking as a personal attack against her. It has gotten to the point to where by the time I was eight I couldn't watch anything that had people yelling or raising their voices without instantly feeling sick. I have tried to explain that her screaming makes me feel extremely terrible (I try not to say that her screaming affects my mental health because she believes that she can be the only one with mental problems and she has everything the worst). She also takes offense to me saying that.

Another thing she does is that she absolutely has no respect for boundaries. She believes that she should know every little detail of my life and is entitled to controlling everything that I do. She has tried monitoring my conversations before, and has monitored what I read and watch. Because of me needing a break from her, and of her needing a break from me as no one should have to be together 24/7 without any break of a cycle, she takes my growth and want of independence as rejection.

Another thing she tried to control is my 'virginity'. Ever since I was literally six she has always told me that if I ever had sex without being married first she would kill me and not care. Like who threatens a six year old with something like that? She has since gotten worse on this subject as I now have a boyfriend, and has taken to screaming at me over him before and after every time I visit him, and has threatened me by saying she will kill him and his family if she ever finds out that I had sex with him. (I'm also not a virgin like at all, and have had multiple partners of different genders). I haven't had sex with him as neither of us have access to condoms (both live outside of small southern town, both have parents who are always around, friend won't buy them for us, clinic ran by family members who would love to tell our parents if we got condoms from there- please don't belittle me about wanting condoms and not being able to get them. I have thought of everything to get condoms, and if u really have a problem and say that getting condoms is so easy u can buy some from my wishlist. Dealing with bible thumping people who preach abstinence is not easy, esp when they will resort to violence over the loss of some social construct that's not theirs to begin with). My mother believes that women should always be 'pure' for god and their husband, and has almost fought me as a child over this belief. Now that I'm older, she has grown more obsessed with my 'virginity' and barely lets me see my boyfriend.

I'm finally going to be going to college, and I cannot wait to have a break from my mother.

Do any of you have mother's like this? What do you think of my mother?