Here’s an exercise you may like a lot: first, make a list of all the things you enjoy the most. Gifts or small rewards you treat yourself to.
Now think of a recently accomplished goal, even a small one, that you haven’t had the chance to celebrate yet.
Chose something from your list and treat yourself to it to celebrate your success. If you can, involve at least one other person besides yourself and explain him/her the reason behind this celebration.