Busy hands are happy hands. When I struggle with maintaining a OMAD, I know this may sound dumb, I do something else instead of lunch. Take an hour long walk at lunch or play a video game to keep my mind off of it. Then after a week or so, I am back in the routine of a OMAD schedule… Make it a routine and it will get easier again..
I’d try just moving breakfast back an hour every few days until it over laps with lunch, then start bringing dinner forward every few days by an hour or so.
I’ve always found small steps each day works a lot better than just jumping into it.
How much did you gain back? I’m curious because I started OMAD in mid-October (took all weekends off) and lost about 20lbs - but was also exercising every day. I took about 6 days off and put on 2 lbs (and wasn’t really exercising). I’m sure some is water weight. OMAD fits perfectly into my life and leaves me feeling so less bloated throughout the day. I’d like to stick with it indefinitely but know I’ll have times where it doesn’t work (holiday, social events, vacations). I’m trying not to look at it as a diet and more of a lifestyle. I love a good dinner and feel I don’t have to deprive myself saving OMAD for dinner.