Update with a trigger warning: I'm assuming she is in the hospital because she is injured from her suicide attempt. I've been chatting with a family member and they said that she is crying and that she is lonely and apparently the only person she misses is me... So Considering I'm so important for her, I think I can play a big role in preventing another attempt, but its so stressful for me... what can I do to reduce chance of another attempt?

I'm in a LDR (Europe, US) with a girl that is mentally very unstable. Trigger warninga week ago she attempted suicide and not for the first time. I know she is alive but for now she can't directly communicate with me but I think she will come back soon.

I made similar posts asking for advice before, and alot of people say I should break up and that my own mental health is more important and stuff like that, but I've made my final decision and that is to not break up. Please don't try to convince me I shouldn't date someone like that, I won't change my mind.

I'm not sure what she is diagnosed with, though I'm 99% sure she has depression and also something else but I'm most familiar with depression because I have it myself. She definitely has more than only depression but I don't know what. But alot of the issues we have is:

1. Her mood can change from happy to unhappy within SECONDS, even for the smallest of reasons and it usually takes a day or longer until her bad mood ends
2. She assumes things: "you probably love others more than me" "why do you hate me" "other people / things are probably more important for you than me". She assumes that I hate her, which COULD be my fault for not showing enough love? For example earlier she asked me for a face reveal which I said I will do it later, she assumes its that I dont care and dont love her and that "later" will be never. Maybe I should have done a face reveal earlier, and other things she requested that I was not ready for.
3. She often said that she deserves to die, thinks she is a terrible evil person and all that kind of stuff (the reasons being both things out and in her control). How do I convince her that its not true?
4. She thinks that I don't care about her feelings and what she wants. Its true that sometimes she says something bothers her and then later I'm forgetful of it, but that I don't care is not true. She often hints that she wants me to do or not do something, but I often dont really get the message or I forget about it. I'm not sure what I can do about this
5. She blocks me very often. But its not that she doesn't like me. She often wants a break from me even though she loves me. I don't fully understand what goes on in her mind.

So I guess that for her, being with me is stressful. But if we broke up, that would probably make her even more sad and upset and give her even more reasons to attempt ending it . I got 3 options

1. break up but I already decided that I'm not going to do that
2. stay together and give her more space, text her less often, but thats very hard for me and might also lead to her thinking I dont love anymore, so I dunno
3. stay together and put alot of effort in learning how to deal with her and her mental issues, this is the option i'm going for and this is why I'm here to ask for advice on how to do it

So how do I stop those 5 things from happening? And tw: how do I best reduce the chance of her attempting suicide again?

I choose to live in stress, rather than live in regret. Its hard to have a relationship with her but I choose to continue it anyway.