Struggling with Managing My Mood

I'm really struggling with managing my mood. My fiance has been out of work for 3 months due to a chronic illness. He has been helping around the house, but I feel guilty saying that it's not enough for me. I've expressed multiple times that I really need him to go back to work or find a remote job. I'm working long hours to try to supplement, but I'm worn. It is starting to turn to anger and agitation. Im acting out with my words. I cry because of all the stress, and I feel stuck. I feel like all I do is sleep and work. I really need some tips on what to try to manage my mood throughout the day and when I come home at night. I want to be able to enjoy my time at home with my fiance, but I feel like it's really hard to enjoy him when I've been feeling resentful towards him even though I know he is struggling himself.