Now from a lot of the books I've read recently on improving my life, I've noticed that they suggest trying one new thing at a time. Theresa Cheung suggests doing all 21 of these at a time. And if you fail to do them for the 21 days straight you have to start again. I believe this is what is called setting someone up to fail.
Secondly; getting out of bed earlier isn't a ritual, nor is taking a selfie to me a ritual. These are just two of the HABITS she suggests trying, some are a bit more ritualistic but to me a ritual style bath, for example, involves laying out the soft robes for afterwards, selecting a candle and bath smells, picking the book(s) and drink and music and turning off notifications before slipping into the warm water and r e l a x. That's more of a ritual and what I kinda expected out of this book. How to make the experiences of your life more special.
I also spotted that one of the cititations was from the Daily Fail. Really?
It might suit someone looking to inject a little something more into their lives but, and it's a big but, I would do a few at a time, they're split into morning, evening and night and I'd pick one from each to try for 21 days and then maybe add more, but it's very prescriptive and not everyone functions the same. We are not all interchangeable and ritual should exhalt that not swallow it.