One of the hardest thing for some people is to change their attitude toward dessert.
You can have almost any dessert if you can hold yourself to only having a bite or two and you can limit that to once a week. Then you would not have a problem with sweets.
But one candy bar or one sugary coffee drink or one dessert at a restaurant and that can blow all of your hard work at the gym.
So for those times when you need more than just a taste and really want to enjoy a dessert. Try glazed bananas.