The biggest challenge that most women face when it comes to exercising during pregnancy and postpartum (other than getting motivated, ha!) is that we don't have enough specific direction. We are given a lot of general recommendations that make it tough to know exactly what to do when we exercise.
The more I embraced my inner introvert, the happier I was. I had more energy when I was at work and with loved ones when I had spent some time alone in the days previous. I also had significantly less resentment towards my husband when I told him what I needed rather than wishing he would just understand what being an introvert was like.
If you're tired of playing the on-the-wagon and off-the-wagon game with food then taking the time to craft your own nutrition philosophy will be an extremely worthwhile endeavour. I think you've got to get to the point of being at least a bit frustrated with food and diet in order to create something meaningful and worthwhile for yourself.