Can I retire?

Created a throwaway account. 55M (spouse is 51), living in southeastern US, and would like to retire in a few months. I recreated a template someone recently shared/posted here and plugged in my numbers, with some additional notes in red. I think healthcare costs are the biggest unknown, I tried to be conservative here (hence 36K per year.). My living expenses are also conservative, meaning I overestimated this a bit.

https://ibb.co/71t7fHc