No energy at all. Had to rely on others to clean my house. Had Low-blood Sugar and passed out all the time. If it was in the fridge, I had to get it before someone else ate it first. I raided it night and day.
Some reward can come from others.
Mostly it must come from you. Congratulate yourself with small rewards at each new goal reached. 5lbs lost or walking up a hill without passing out are both worthy goals.