Do i have issues setting up boundaries?

19M(adhd) i do not have bpd. But my GF has. So our relationship has been going strong since 2 years. And still is. The issue that I'm having is. My entire mood depends on her, which isn't very optimal for any of us right?. She had an entrance exam this may but she's been having really bad problems with dealing with anxiety and panic attacks. And she pretty much fainted during the exam. So yeah, pretty much she isn't going to get in the medical school that she wanted and this was her drop year. She has an abusive father but because of all the family matters and society, we just have to deal with him unfortunately. Early on our relationship she has tried to commit multiple times, but recently almost a year or so she has gotten way better and hasn't tried to commit. She has having less and less "bpd episodes". So everything is going great right? Yes(not really but yes), But anytime her mood is off and whenever she says a dark joke about herself, yk all that stuff. It makes me panic. I have told her not do that but that's just humour i guess. And when she gets sick i get sad, anything bad happens to her i get sad. I deal with it somehow on her face but internally i really sprial down. I pick myself back up in a bit but i just wish i didn't do this everytime coz no one is perfect and I don't want to fuck up and cause her any harm. Now that I'm writing about it I don't even know if this qualifies to be on this subreddit anyways but oh well... All of you are really supportive and helpful since time I've been here just spectating. I hope all of you have wonderful days ahead of you and don't have to deal with all the bpd bullshit soon.