One of the most powerful ways to internalize your lifestyle behaviors and make them permanent is to become an advocate, a teacher, a mentor, a sensei—channeling your inner Master Shifu.
By playing the role model, everyone will start to see you that way.
What seems like a quirky behavior (“What do you mean you don’t eat bacon?”) or a temporary change (“How long are you going to be on your new diet?”), will become normal and accepted (“No, she doesn’t eat processed food”; “Yeah, he’s always at the gym”).
When those around you accept you, it will reinforce your own view of yourself. And that is powerful.