Losing the passion!

Michelin starred restaurants are a rarefied environment. They aren't for everyone, but they are not the end all and be all of the hospitality industry. There are plenty of restaurants doing top notch cuisine without Michelin stars.

You have the opportunity, I would say go for it. If it turns out that you don't think it is for you, so be it. At least then you will know and not be torn by regrets later if you don't at least try it.

I love driving sports cars fast, but I have no desire to drive at the 24 Hours of Le Mans. I enjoy sports cars but am quite happy doing it at the level that I do. I don't think any less of myself for it.

I have done a lot traveling in my career, both nationally and internationally. In every locale, I have found the culinary community to be a small fish bowl environment, everybody knows everybody. Probably not best to express self doubts (even though it is very  normal human reaction) in a public forum, especially if you just accepted a new position. I think it was probably a wise move on OP's part.

Smaller electronic footprint this way, so less chance of rumor mill gleaning onto it.