What can I do to protect my feet?

I'm 25, male. Type 1. I've had diabetes for almost 10 years. I've never had issues with my feet, but lately they've been hurting. I got a new job working in a very cold environments(-20°F- 30°F) which requires me to wear company issued steel toe boots. I don't know if my feet have been bothering me because of the boots, or if it has to do with the cold (although my feet never really get cold). I honestly think it's just because the boots are uncomfortable but i don't know for sure

But is there anything I can do to help protect my feet, definitely don't wanna lose any of my little piggies.