You know, unicyu: taking in all of your posts and what you have shared about this relationship so far, my biggest feeling is that it just isn't something that's healthy or functional all around.
Honestly, the way you describe some of the ways the two of you talk to each other and treat one another, it's hard for me to even get the sense you LIKE each other. You say you love him, but the way you two interact doesn't sound to me like people who like each other, let alone love one another.
You also describe both of you being very physically aggressive with one another on the regular,. some of which sounds like abuse to me (and not just from him, but as something you both have done to each other). You talk about seeing each other for around a year and there being almost no boundaries for most of it. You talk about accusing him of cheating with frequency, and thus, I assume, not feeling like you can trust him or be secure in your relationship.
You also say you both struggle with anxiety and other issues, and of course, you're both really young. This is probably a first serious romantic/sexual relationship or one of them, and it's common for things to run really high all the time and to struggle to figure out how to have a healthy relationship like this, especially if any of those issues include either of you not growing up in healthy families or such (I don't know if that's an issue or not, but it sounds like some kinds of boundary issues and maybe even physical abuse are normalized for you two, so it seems possible that's stuff that's come from how one or both of you have been brought up). It's not unusual to have these kinds of struggles with intense early relationships.
But it's also not uncommon for people having the kind of dynamics it sounds like you two have been having not to realize that what might be happening is that you're just not in something good for either of you, even if you feel attached to it, and that it's probably past time to end it. It sounds like a lot of unhealthy dynamics -- the fights, the physical aggression, etc. -- are just a longstanding pattern here, and it seems pretty unlikely for you two to change them together at this point, especially without professional help, something very young couples usually don't have access to.
I know that's a lot to take in, but can you think about it some and share your feelings and thoughts about it with me?
Also, you have quite a few different threads now that are all about problems in this relationship. I don't think it makes sense for us to try having what is ultimately going to be a very similar conversation in all of them, because it's too confusing and hard to keep track of. So, I'm going to go ahead into each of those and give the link to this one and lock those up for now, just to make this easier for you and those of us working with you. (In other words, you didn't do anything wrong by posting all those threads, I'm just doing that to make it easier for us to work together and to have cohesive conversations about the one topic -- this relationship -- they're all about.)
Never doubt that a small group of thoughtful, committed citizens can change the world. Indeed, it is the only thing that ever has. - Margaret Mead