In order to win Championships, some tennis players take ballet to make them more graceful and light on the courts. They create habits of working on themselves while each 0.1% amounts to the whole. It may also be a word of advice to create habits around the solutions to your problems i.e. the tennis player stretching every morning before the start of the day.
PROBLEM: flexibility, mobility
SOLUTION: ballet and dance classes
This answer says nothing about what you tried. “Create a habit” also mostly isn’t a one-shot solution in the way the OP uses the term.
My relation to the article was in reference to implementation (of a habit) and to address the 0.1% in changes that advocate for a better outcome for a solution to change. I play tennis and I must also sharpen this skill with complementary solutions (ballet) to ensure I win my matches. Again, it’s about the small solution changes that add to a whole.