Osteoarthritis plus Fibromyalgia

Hi, my name is Miles, and I have had Fibromyalgia since 2014. My wrists, knees, fingers and elbows since Nov 2024 have been getting worse pain and fingers going out of shape with lumps at the joints in the fingers. I thought it was RA but I was diagnosed with Osteoarthritis yesterday. The pain is gradually getting worse. Well, it's more painful than last week. Do you have any ideas on how to look after my joints, any supports for my wrists, etc?

Thanks