How do you get over the miserable days?

Recently I've been so miserable. It's crazy and I can't even put into words how it's been making me feel recently. I work about 50 hours overnight and the last few days have been horrid. If I'm not in excruciating pain, then I'm covered in rashes/hives/welts that itch so bad they almost feel as if they hurt. I feel like crying almost as I type this. Like right now, my back and arms are covered in welts or rashes. Whatever they are. I've taken several allergy pills and nothing helps. I've seen an allergist and the couple things I found out I was allergic to I'm nowhere around or don't live with so it's not from an allergy. I don't know what to do anymore. I'm starting Methotrexate on Thursday and I'm praying for the best. (I'm on rinvoq and hyrdochloroquine ATM) what else is there to take at this point. Like what else can I take to help. Prednisone will calm them down, but as soon as I stop taking it, I flare up even worse than before so I'm stuck and try to avoid it unless I'm literally desperate .

Anyway, thanks for any help that is given or advice. And for letting me rant, it helps sometimes!