I don't know that you do... I'd say people come in and out of the state... but the very best news is... now you know what it feels like to be in it, and so it is always a marker for yourself. You know when you are there, but more importantly, you know when you AREN'T there, and can work to get back to that place.
Analogy time. When I first started playing golf... it ALL felt off, and certainly not natural. As I progressed as a player, sometimes I'd be ON and sometimes (more times that not) be OFF, but I had no idea why. With practice and lessons, I learned better techniques, etc., and stayed with a more consistent swing for longer and longer periods (though I wouldn't say I was ripping the course up with great scores. But I digress). Now, when I lose my swing or my game, I have two or three things I always go back to in order to self-regulate... if that doesn't work, I go get a lesson. Usually the thing it takes to fix my swing are one or two minor things I didn't realize I was doing.
And quite honestly, nothing beats practice. Nothing.
So... you've learned one or two very crucial lessons here about yourself. I'd write it down, stick it in a drawer, and when you feel yourself losing it, or going back to old patters on behavior, pull out your sheet to remind yourself of the mental attitudes you must possess in order to be in the 'state of being' you so prefer.
Easier said than done, I know, but we all know that if you want to lose weight and get in shape, the only way to do that is through diet and exercise. Now what kind of diet and exercise you do will be tailored to what works best for you. The key to any of it is self-discipline and self-love. Of which you have both.