22M, 26F - Live in SO with no life, friends or family. How do I get out.

We started dating 2 years ago. Just had gotten my fresh job, first kiss, first partner. This is all in Germany. Too many firsts.

We moved into a 25sqm student accomodation with a kitchenette.

I ignored all the red flags due to lack of experience, but I'm done. She comes from an abusive household. She wants to have no contact with her family, but every time they call to arrange to meet with her she has a mental breakdown. She's still agreeing to remain in touch due to her small sister.

She was raped when she was younger (around 18), and she has a very extensive sexual past. Every day for my last 3 years I've heard the phrase "there's something I don't want to tell you", which is driving me insane. She is constantly reflecting about these things she did in the past but she regrets, which is taking up all her mental capacity, and now mine.

Every day she will lie for 2hours on the bed not doing anything.
She has absolutely no one to speak to other than me, so she naturally unloads everything on me. She has no friends, and she hates her family.

I don't think she has a highschool degree, she says she wants to go to college, but it's been 2 years.

She worked as a cashier and quit around a year ago due to not being able to take it anymore. Toxic people and whatnot. This lead to me paying for the accomodation and most of her things with my 14eur/h 20h/w job. Not sustainable.

She has always had this idea that she can make money by doing phone surveys or playing these stupid phone games. She's not looking for anything else, she doesn't have s routine, nor plans.

Oh, and she also has no hobbies, which means that she drags me to the supermarket at least once a day just because otherwise she doesn't see the outside world, nor do anything.

I tried breaking up a week ago, but she started having a bad tantrum and she cut herself on the wrist and started going off about all the plans she had of us in the future. She's loving, but she has no prospects. We also have a big argument once or twice a week.

Wtf do I do in this situation? I can't reasonably kick her out, and me moving out would likely involve most of my things being destroyed, along with her maybe doing something stupid.

I just want to live my life again.