Promises are a real thing. Even though many of us might interpret them as volatile, less interesting, and sometimes feel they are a burden, they are not
Promises are great element to define how much you respect your word, how much you care about what you say and how you say it.
The way you keep promises also sets the bar on how much people can/will rely on you.
What would happen if you can’t be trusted?
If I had to give an advice it would be exactly this: Keep your promises.