I found this gem from a few years ago - the Ulysses pact.

Truly - I am still working on keeping the promises I make to myself. What I’ve learned in the last few years is that the more specific and time bound the promise, the more likely I’ll stay with it for a bit. However, the more simple and broad the promise, the more likely I’ll keep it for longer.

Example…

Short commitment: Stop eating after 2pm.
Long commitment: Keep yourself open to new experiences that promote your wellbeing so that you can help others.

The former was good for a while, but it’s the latter that has allowed me to flex my interests and keep me from being too rigid. That’s what works for me.

What works for you?