How do you handle regain?

Now I know you don't have this issue. Not me either. Of course.
I'm talking about the friend of a distant cousin's neighbor's school chum.

It goes like this:

- Lose weight.
- Gain some back.
- Lose again.
- Gain again. Maybe just a little. Maybe even more.

Okay, okay... you get the idea.

So the issue is being overwhelmed by a soul crushing and demoralizing sense of self betrayal leading to self hatred and the belief that reaching goal, and maintaining a healthy weight is obviously a dreamer's fantasy.

Now this friend of a distant cousin's neighbor's school chum is a really sweet person, who works hard, and helps out elder family, plus works long hours at a sometimes stressful job with a pretty long commute. Most days, this friend of a distant cousin's neighbor's school chum doesn't get enough sleep, and comes home too tired to work out, or prepare healthy meals, but does do some big batch cooking on the weekends, and doesn't park as close as possible to home or at stores, hoping to get a few extra steps in.

This person knows what to do, but at times it's just too difficult. The mojo is wavering.



What advice would you give to my friend of a distant cousin's neighbor's school chum to help with mood and motivation?

What's the best advice you've ever been given?