This is the boot unused, I liked it a lot (even though the air pump feature broke almost immediately). I’m also a dude in my 40s and 5’10 about 180 lbs, but looking at it I think it would work fine with any average size adult (maybe not someone who is very very petite or very large).
United Ortho Short Air Cam Walker... https://www.amazon.com/dp/B006L8M2GA?ref=ppx_pop_mob_ap_share
You might think it’s gross, being a used foot ware product, but I’m done with it and will happily ship it to you if you want it.
This might help. I’m wearing one right now. Much better than crutches and keeps your foot stable while sleeping.
https://www.amazon.com/dp/B006L8M2GA?psc=1&ref=ppx_yo2ov_dt_b_product_details
Got one of these and get on medicine.
https://www.amazon.com/dp/B006L8M2GA?psc=1&ref=ppx_yo2ov_dt_b_product_details