I remember the first time I had to face a three day fast a couple of years ago. It actually scared me. And recently, when doing my first week of EIF (Extended Intermittent Fasting) I was a little hesitant, thinking a 3 day fast was a difficult thing.
But I noticed this morning that it was no big deal to me now. I was more than halfway done and I had no anxiety about it at all. Just another day fasting. My hunger levels were fairly low today (until, of course, right Freaking NOW) and my energy is pretty high. I still have a problem with too much time on my hands, but it's not a big deal as far as eating.
Part of this is learning not to haunt the kitchen. I go to the first counter to make coffee or prepare my drinking water, but I don't need to be checking out what I have in the fridge, LOL...
But most of it is that I feel like I've done this 66/6 fast often enough, maybe five times, that I don't have any false expectations of it being difficult. Plus I did that seven day fast pretty easily. I guess I'm just getting used to it.