AIO for losing my patience in my girlfriend over her mental health?

Hey guys, long time lurker and first time poster in this sub.

Me (23M) have been dating girl (F23) for over four months now, we met in college but only after college did she approach me and begin our relationship. Its been nothing short of lovely for a while, but these past few weeks have been a real test to my patience. Every day she wakes and texts me something along the lines of, "I'm depressed af, I slept like shit, I hate my job, I wanna die, etc." Me being a very kind and passionate boyfriend, I trey to make her problems my problems, but it gets to a point where I don't wanna be miserable every single day and have to sit at work worrying about how she's feeling every day, ad whether she's gonna project her anger/sadness on me later and ruin my night.

Any advice would be amazing, and It's important to note that I have had my run ins with mental health in the past so I understand how tough it can be, but AIO for slowly losing compassion?