It's important that you always choose yourself. I like to tell myself that I am all that I've got, that way, it's a reminder to care for myself with reckless abandon.
I've never had to really give myself a treat too. Once I have saved up for something like that, I gave myself reasons why it's not so important. But when it comes to other persons, I always make time and resource available to let them have fun. That should not be so. It should be Me, first.

I like that you want to be intentional about yourself. The benefits are numerous. And definitely, you'd get to discover yourself more that one and appreciate you better.