Sorry to hear about your knees Aidy.
For years I suffered with arthritis and both my knees had been in steady decline, then in 2017 cartilage in the right one split - agony and I could barely walk. X-rays confirmed the joints were well past their best but at 57 the NHS said I was too young to be considered for joint replacement. Not what I wanted to hear but really glad they said that now as it set me off looking for an alternative.
Information was difficult to find at first but there seems to be lots more available now (go on YouTube and search "Knee joint cartilage self repair). A few simple exercises coupled with dietary supplements of glucosamine sulphate (available at big supermarkets), drinking chicken stock daily and eating Pollack every week soon had my knees back in better shape than they'd been in years.

Arthritis - fast forward to one year ago - Whilst looking at ways to avoid the looming spectre of type 2 diabetes I came across inflammatory foods. I knew about anti-inflams, been taking turmeric for years, but had no idea some foods actually cause inflammation, not just in joints but at cellular level so they contribute to all kinds of problems.
The big ones it seems are seed oils (vegetable oil) especially in solid form used to replace butter. Extra virgin olive oil's alright and ev coconut oil but those extracted using heat and solvents - canola, corn, palm, sunflower oil etc are best avoided.
To distance myself from type two I also cut out or reduced food with a high glycemic index - sugar, rice, taters and wheat flour. Amazingly, not only did my insulin resistance drop but arthritis quickly stopped being a thing. My joints are no longer painful or red and have full movement. No need to take turmeric either.

Not saying any of this is guaranteed to work but it certainly sorted me out. Maybe worth looking at.

Another 73 dispatched today Wife thinks I’m going slightly mad

A silly tea again since it turned out so warm, but we had soddages as a tray bake with spuds and veg.  It was pretty good even so 

Me Myself and I - De La Soul

I'd recommend Honeyoye, which I believe is available in the U.S.   Lovely flavour.