Your principles & values are the things you believe in which guide your conscious decision-making process.
To help define your own principles and values there are two resources with a lot of examples that I recommend looking at.
https://personalvalu.es/personal-values-list
https://jamesclear.com/core-values
But, it's important to merely use these for inspiration and to reword and define your principles yourself in an actionable manner. Author Simon Sinek describes why very well:
“For values or guiding principles to be truly effective, they have to be verbs. It’s not “integrity,” it’s “always do the right thing.” It’s not “innovation,” it’s “look at the problem from a different angle.” Articulating our values as verbs gives us a clear idea how to act in any situation.”