Hi Derek, yes I kinda went thru the same thing w/ my achilles surgery. However, I did get a ice machine to wrap around the cast to keep the foot cool (I have hot feet) and it really helped with that feeling. Is your foot hot? Keep ice on it as much as you can. Maybe you can get an ice machine but you have to have someone fill it up w/ bagged ice for you about every 6 hours. Does help keep the swelling down.
As far as being so limited for so long that got frustrating too. Have you been out of the house yet? Try to get out some if you can or sit on the porch or whatever if your foot allows it. I remember right around week 5 I really lost it and cried and threw stuff and just had a big old fit. Probably could have used some anti-anxiety meds, huh? should have thought of that. I used a foot scooter thing instead of crutches too that helped (being a girl w/ no upper body strength). Really helps getting around. It will get a little easier once you get into a walking cast and stuff, just hang in there.
Hope you feel better soon, cj