I think the reason why it worked so well for me from the beginning is because I really focused on the no-zero aspect. Make that your goal. You say you are ready for a big change. Break that up into the tiniest pieces. Be like the squirrel. If you haven't already, make today a no-zero. If reading is something you want your future self doing regularly, grab a book and read one page. Done. If you want to be more educated look something up on wikipedia that you heard on the news but have no concept of (today for me that was austerity). Done. I guess that's the secret. 0.01 is not zero. It's not the big change you have in mind but it's easy and doable. And over time these things become part of your identity. In a few weeks you are someone who reads regularly. Or someone who eats healthy stuff regularly. It's not something you dream about it's already who you are, no matter how much it is. Start with a few tiny things so you have different options to make it a no-zero and make sure to check at least one of them every day. Extend that pool of habits over time if you find new areas you want to improve on.

It was also very helpful for me (at least for some habits) to not focus on certain actions but be a little more open. The 18 things I'm tracking in the app right now are represented by emojis. The house emoji means I do something in the household. Making my bed, doing the laundry, whatever. The credit card emoji means it's about my finances. Putting some money to the side, investing in an ETF, reading something about budgeting.. it gives me more options to check off that item and extends my habits over time.

And I think it's important to be kind to yourself. I have a few things I aim for but don't check off a lot. Like writing a journal. I don't feel bad about it. I can come back to it later when other things have become more automatic. I still improve in other areas and that's fine.

What I quickly stopped doing is tracking the 'negative habits' I see regularly in these apps. Like not watching netflix, not smoking, not eating junk food. In my opinion it's way better to focus on the positives and more importantly it's much easier. If I take a cold shower in the morning or do my Spanish lesson then that's done. I'm already at no-zero and can focus on other things which is very rewarding.

Yes, I can recommend the book. It goes more into detail about how habits are formed and about tactics how you can make it easier to develop them.

But don't wait for the book. Do the 0.01 today. One acorn at a time. Be like the squirrel.