I managed to get out bouldering for a little bit yesterday! It's been a long time, and although I was extremely tentative (still experimenting with a tweaked hip-flexor or psoas in my left hip, so tried to avoid pulling hard) it felt great. Also managed two short slow runs, and more random one-legged chair squats.
I'll try 3 exercise sessions per week and at least 5 stretch sessions (>30 min). The flexibility thing is really killing me these days.
Also, Travoli - thanks for the tips. I have tended to be a breakfast person, but no eating after 6-7pm was just too early, especially for social situations. I'll try pushing back the breakfast time and give it another go.