My girlfriend has some problems of her own. She suffers from depression,anxiety, and mood swings. She gets insecure and avoids social events with many people.
Last night she told me that she started to cut again.
She dealt with suicidal thoughts and self harm during the past few years (before we started going out) and she's been doing well lately.
I asked her why she did that and she didn't really have a reason. I asked her to stop, to which she said that she would, and I told her to think of a good reason to stop for herself and that I shouldn't be the reason. To this she replied that she couldn't think of a reason, which bothered me greatly.
She is currently seeing a guidance counselor and taking medication.
I take out hours of my day from studying and sleeping to talk to her and help her with her problems. (I end up going to sleep at 1-3am depending on the day)

Is there anything I can do to help?
And advice would be greatly appreciated.

I just don't want her to continue self harming or do anything else that could really hurt her.

I am the same way but I never cut I wanted to kill myself many times and have been hospitalized on many occasions but I am afraid to die but more than anything I wanted help and attention as when I was young I was horrendously bullied by Students and teachers alike my own sister bullied me to I was also sexually assaulted by many family members and friends
Even shunned by my family but t sister who committed suicide for being raped who did heavy drugs and was asking for that to happen got all the attention and love she could get she was the favorite I'm the retarded no good cry baby your girl friend is wanting reassurance but your feeding this behavior you don't want to drop we like a hat as that will only make this worst but you have to slowly and gently break away not dump if that's by what you want but she has to become and want to be more self reliant want to be with people. You can't give in to this attention seeking behavior it does neither of you any good. She has to make a choice try and get better truly for herself not you and keep trying no matter what but you can't comfort her every second of the day this is we problem not yours get her a medical doctor psychiatrist and some form of counseling if worse comes to worse forced hospitalization for her own safety

Sorry for all the type os damn auto correct. This is a delicate situation though but like I said gently get her to stand on her own to feet as this is majorly unhealthy. What she's doing is sucking you Into her own little vortex of unhappiness even if she loves you. This is the beginning of an obsession of you and for your attention and reassurance don't let her go there get her help. She has to want to be better I was on the highest drugs and I have gotten past this it is possible but very tough emotional wounds never fully heal but you can learn to move on without it interfering daily life