So you're well on your way to achieving your weight-loss goals. Feels good, right? Those changes you're implementing in your life? They've got to be PERMANENT, baby. You might get into a size 8, or have a six-pack to show off, but that doesn't mean you can cheat, get lazy, or stop counting your calories.
Keep in mind, all this work — mental and physical — is helping you look at your life in new ways, with deeper insight and understanding. The bottom line is this: You can never go back to your old way of life if you want to maintain your new physique. You're on the wagon, my friend. As with any kind of recovery, just because you're rehabilitated doesn't mean you don't have to be vigilant to guard against a relapse.
All that soul-searching and honest examination has to continue. All those behavior modifications and healthy, life-affirming habits you learned have to stay in place every day for the rest of your life.
I know, it sucks and it's hard. Whatever. It's the truth. The good news is that it will get easier. You'll get accustomed to how awesome it feels to treat yourself well, not to mention how awesome you'll feel every time you look in the mirror or catch your reflection in a store window! Eventually, behaviors and choices you've had to think through will become gut instinct.
You can do this. Remember, you're doing it right now.