[david422]

For bad habits, add friction. Delete the app, block the address at your router, etc. For good habits, reduce friction. If you want to eat healthy, buy healthy food at the store so when you go looking for junk food there's only healthy stuff etc. Doesn't have to be 100%, but the idea is that you make it harder to do the bad stuff and easier to do the good stuff, and eventually that starts adding up.