It's not easy Romeo, this co-parenting thing! Part of the issue is, as you said, wife takes on too much in her life and then is spent when it comes to handling the kids issues. She then maybe over reacts to things. On the other hand, it is important to be a unit in dealing with discipline issues. So, I back her up as long as it's reasonable to do so. The sad thing is that she knows she takes on way too much, gets way too stressed but does nothing about it. She just keeps on the same route. Anyway, as far as diabetes, that's done like dinner! I worked my butt off, lost forty lbs. and the diabetes. No blood sugar problems since. Hey, it was my stupid life style decisions which gave me diabetes in the first place so it had to be me deciding to change that made the difference. I was ashamed of myself and promised my kids I would do whatever I needed to in order to reverse this. I kept my promise!
