One weak point I've discovered is that the time I'm most vulnerable to sadness and most tempted to backslide is supper time til bedtime since that is when W and I spent the most time together.
In order to bridge that gap I've been working until at least 5:30, eat a small, pre-workout meal, go to gym for 2 hours, work off any stress or bad feelings that have built up during the day, go home exhausted, eat small post-workout meal, take shower, watch something funny on tv or read...which quickly results in falling asleep.
Even that is starting to feel less necessary, but it seems mostly healthy to me so I'm sticking to it for now.
