Struggling with Mental Health and Loss

I'm really at a point where I'm struggling. All of the bad things just keep piling on right now and my heart hurts from all of the things I'm feeling. I also am just feeling defeated that I'm not coping as well right now even with my meds and the different things I've been doing to care for my mental health. I was doing so much better for a while and then I had a bad day at work (I'm a nurse and I found out a patient I had cared for passed away - not from anything I did or missed or anything like that but it still hurts), my grandpa ended up in the hospital (he's back out now so I should feel better about it but he's still not fully healthy so I'm extremely worried), and my childhood cat just passed away today (she was 20 years old so I should have been more prepared). There's more but the other stuff seems insignificant compared to those things. I just don't know how else to get through this right now. I'm trying all of the things I know of and keep searching for more things to try but I'm so tired and it's hard to care enough to keep trying. I honestly just want to sleep until everything is better.