How do you build habit formation for health that actually lasts?

[Addison39]

Habit formation for health is something I struggle with because I can start new routines but have trouble maintaining them long-term. What strategies have you found most effective for building health habits that actually stick? I'm looking for wellness improvement strategies that account for the reality of motivation fluctuations and busy schedules. Morning routines for wellbeing are great, but I need help with the systems that support consistent habit formation beyond just the initial enthusiasm phase.