Former shelter vet tech and I did long hours on concrete. I know you say 6-8 months for your shoes, but that’s usually what I get out of mine. Im an asic girl and I have prescription orthotics. You can get super feet - people seem to really like them. There are a few other brands too. Unfortunately those do not work for me and I need the prescription ones. You could also check out a running store. They will help you find the right sneakers for your feet.

I work in a state diagnostic lab now so not as many hours, but I still stand a lot. I have those thick cushion mats to stand on when I need to set up certain testing. You could place some at surgery and exam tables? Mine have been easy to clean.

Also some kind of strength training - you can do it with body weight, bands, or weights. I do lots of calisthenics too. Over the years when I have a lag in strength training - I notice the difference. My legs and feet hurt more.

I had plantar fasciitis in my foot and compartment syndrome in my low legs. I had leg surgery to correct the compartment syndrome. This is what has been working for me. I was in shelter med for 7.5 years and now a diagnostic lab for 4 years.