So I've created a new reward system for myself.
*10 points max per day
-1 point for every (non-sweet) item of food
-2 for every sweet item
+1 for every glass of water
8 points = 1 credit
**7 credits = reward
*positive points will be reset at the end of the day (i.e. if score is -1, it will be -1 at the beginning of the next day. but if score is +9, it will start over at 0 the next day.)
**extra/left over credits can only be used during the last month of the year. after the new year starts ALL points and credits will be reset.