Need advice

I'm currently in a relationship with a girl I used to date back in highschool for a few years that ended with her leaving me for a roommate. We reconnected recently and have been dating for a few months now after she left a toxic relationship of a few years. Things were going great but did seem to start moving pretty fast. Like spending more and more time together and her asking me to sleep over almost every night. Recently it's caused friction in the relationship.

On top of that she had started a Private *** for . selling Sexual content when we started talking and was in a Poly relationship prior to us getting together. I on the other hand am not into or feel comfortable with either. We only briefly talked about it in the beginning. I had mentioned I was uncomfortable with it and she had told me that she had cut off previous sexual partners and wasn't selling content. But I would still see vague posts in her stories on *** relating to it (Still feeling like she's secretly doing it or talking to other people.) it made me weary (jealous, insecure) that the intimate content she was sending me was just being sent out to her Private *** list of followers (some of which she has had previous "relationships" with). With it starting fights if I were to question anything related to the subject. Then leading to her flat out saying that "she'll never send me anything like that again" and not initiating sex or intimacy and that I would have to or it wouldn't happen.

During the fight she had mentioned that she's used to dating multiple people (some just for dates, some just for sex, and some just for emotional connection) and that if I want to be with her that I would have to fulfill all those duties and that I wasn't doing enough.

Recently after a big fight that felt like we were gonna end the relationship we are currently in a place of working it out. She brings up that she is going back to selling content for income. Which I know bringing it up or talking about it will lead to a fight and will most likely end the relationship.

I've been in a very vulnerable state of mind due to problems with mental health, loss and financial stability causing severe depression and never able to go to therapy to work out problem or having someone to talk to or relate on the subject. 

If anyone can relate or help with guidance it would mean a lot.