We all need rewards as motivation - they help us look forward to the work. But don't reward yourself with food. That doesn't get you closer to your weight loss goal and it sets a bad habit.
As my aunt said the other day: You aren't a dog, so don't reward your behavior with treats!
Instead, find non-food rewards such as trips, reading time, shoes, clothes, pool time, pedicure or manicure, spa day, or anything else you want to do or have always wanted to do but never found the time!