For example? Leave fresh fruit on the table to encourage (cue) eating an apple a day?
It's easy to do Y and Z after you already got up and did X. It's much harder to persuade yourself to do Y so that you can do Z so that you can do X when you're lying in bed fighting to get out 15 minutes earlier.
Make it easier to do the good habits, and harder to the bad ones.
I'd recommend looking into the research that Prof. Wendy Wood at USC Marshall has been doing on habit forming behaviour in humans.