When I had to wear my Aircast walker boot, my physical therapist strongly suggested I pay attention to the footwear on my "good" foot. The sole & heel should be as close to the same height as the injured foot in the walker as possible to avoid putting additional pressure on your knees & hips (and to help the injured one heal).
Try www.myrecovers.com A few months ago they were featured in our local paper (The Boston Globe) and I sure wish I had known about them when I had to wear one!
Good luck! Everyone means well when they say you shouldn't do things -- and even though they're absolutely correct, sometimes there's really no option. Hope this link helps.