I am so sorry!
While I was non-weight bearing after breaking my first, second and third metatarsals, I did get the knee scooter and used it on the first floor of my house. If I was going somewhere where there was a lot of area to cover (like the grocery store or my son's school) I would get my husband or son to load it in the car for me. I could have probably done it, but it is fairly heavy. It was a life saver, though.
When I was using my crutches, I had a bag I hung around my neck to put stuff in. Also, get food and drinks in small single serve containers. You can't get a gallon of milk out of the fridge, but you can put a small bottle/container of milk in some type of bag you can carry over your shoulder or around your neck. Likewise, it is hard to make a sandwich, but if you can get someone to make some in advance for you, or get some microwaveable meals then you can manage that.
I was lucky enough not to have to drive during the first few weeks after my accident. I know it was not wise, but after a few weeks I did drive with my right foot, but I don't recommend it, especially for any long distance. I only did very short trips. I have heard there is some type of adapter you can get to allow you to drive with your right foot, but didn't look into it myself.
I borrowed a shower chair and recommend that highly. You can back up to it while it is in a tub or shower, prop your crutches against the wall, and it is very stable while you sit down on it. I then had a regular chair in my bathroom with everything I needed to get ready right there. Once I went downstairs, that was it for the day. I didn't come back up again until bedtime.
It sucks, but you will get through it. Good luck!
Grits
2010 Trek 5.2 Madone WSD, SI Diva Gel Flow
2002 Terry Classic, Terry Liberator