Have you tried swimming? Worth a try.
My pool costs £30 a month so if I swim 3 times a week it effectively costs £2.30 per visit and if I swim four times a week it’s only £1.75. Add £50 for a new swimsuit per year. It’s a really cheap way to get fit and all shapes and sizes and speeds go to the Lane Swimming sessions.
I am 50 and I now class myself as a moderately good swimmer. I go for 45 mins three or four days a week - it makes a massive, massive difference to my aching muscles (I have also been peri for a few years).
I do really swim though not just float! I do a mixture of strokes (very important for maximum benefit) so I usually end up doing 56-60 lengths, made up of crawl, breaststroke, kicking on my back and front (I take a float), and a few half lengths of walking if I’m feeling very tired. I do let myself have short breaks to catch my breath.
After I swim, my muscles are very “liquid” so whilst I’m waiting for my hair conditioner to soak in in the shower cubicle, I do standing-up stretches to stretch out my shoulders, my hamstrings, back, glutes.
After six months of this - after a swim when I do a forward bend I can now get my hands almost flat on the floor which I haven’t been able to do since I was 35!
While I’m changing - waiting for the body lotion to sink in - I do squats.
And then whilst I’m brushing and drying my hair , then I do single-leg bends and a wall sit (which happens to work well in my gym’s layout).
I do also try to walk for 30 mins a day or cycle for 30 mins (stationery bike at home), especially on days I don’t have time to swim.
I would try this for several months and see if there is a benefit.