For me it's always helped to have a motivation outside of diabetes. When I was younger, it was playing in rock bands and wild partying, not really recommended by the AMA but not wanting to miss the fun motivated me to keep an eye on BG. It is also *extremely* difficult for me to tune guitars when my BG is off as the beat tones get all echoey. A few years ago, I felt dragged out and really out of shape (@ 275 lbs...) and started exercising and that's my new hobby, much more wholesome and productive, although perhaps paradoxically, running seems to be inculcating me with a bit of a "lone wolf" streak? Whatever that cost, I start getting ready for the weekend long run maybe Thursday, eating a bit more, not a ton but a bit of a load and then stop around lunch on Friday. Up early on Saturday and get the run done and have a great weekend. Usually my BG seems to survive but I will admit that I seem to have it easier than a lot of people. Perhaps because of a perspective on insulin developed during my wilder years?
Kids are a great thing but may be a bit unfocused. My daughter was 6 when I started working out and got dragged to stuff (Tae Kwon Do...) that she didn't really like but went along. Now I'm on my own and like to escape and go for runs. If you can escape into something, I think that succeeding at anything whether it's walking/ hiking, knitting (which is probably hard to do when your BG is messed up too?), anything, can give you a focus to say "ok, BG, I'm going to put you in your place so I can ______"
I also totally agree with Zoe about doing getting on track for yourself, rather than for your doctor. When I was heavier, I'd "shop" for doctors by looking for the heavier docs in their glamour shots online. I liked the GP I found that way a lot and, eventually, when I was able to start getting in shape, he'd say "I need to do what you are doing" which was a good feeling. At the same time, my BG drifted and I chose to try to fix it with a pump, which also worked out for me.
I'm glad to hear about the phone conversation w/ the nurse! Let us know how it went and I hope she was as good (or better?) in person!