That's might be a good advice for some introverts who want to stay who they are. But I think it is a bad advice.

Going always the same patch from work to home, eat always the same food all the time, creating a ritual from everything - that is a common way for an introverts an autistic people to stay away from the world, always looking to the ground.

I know, it is almost painful to do a new, different things, you need some effort, to force you to go a different way, to try a different combination, to visit a new, strange place, and especially to talk to a strange people. But after a many tries you will re-frame yourself, and there will be no more regret ever.

The DRY principle is not only for programmers. It is all about going out of a comfort zone, about developing a new habits and re-framing those which are here from a childhood.