Good morning and welcome to NeuroTalk, itw314!
Wow, I'm so sorry... sounds like you've really been put through the wringer.
You started out with pneumonia and ended up with a terrible bedsore (hope it is healing) and a dead foot (so to speak).
A couple of years ago while dealing with a broken ankle, I came across this nifty aid:
http://en.wikipedia.org/wiki/Knee_scooter Perhaps it could help you get around better and faster.
It is a non-motorized scooter that has a cushion on which you place the knee of your bad leg, then use your good leg/foot to propel it forward. It even has handlebars with brakes!
While fairly useless in my small home (couldn't negotiate the tight turns and carpet), it came in very handy at work and in stores. You can buy them, but I rented mine for just a month, until I could put weight on my leg.
I wish you the best of luck and hope you are able to find help and support here at NT. I'm sorry your family doesn't understand what you are going through, but everyone here is fighting some sort of battle, which makes us a pretty compassionate group.
Here are some healing hugs to get you started:

