I can sympathize, I've got alot of similar problems myself since my meds block almost all of my testosterone and I've got really no energy at all.
I've got one of those powders that I take with milk, and it's really good, which I really didn't expect. My coworker prodded me to try it, and since it wasn't ludicrously expensive I went for it.
She used to get exercise, Swimming mainly, not really possible with COVID going on though since the arthritis is bad enough that she gets chemotherapy drugs to combat it. It sad how fast it went, she went from fully active and healthy to not being able to lift a coffee cup in a week.