What habit do you have now that you wish you started much earlier?

Working on my personal project has become a habit in the past few years. Although I did try to make it a habit in the past, and to some extent I did, it was a temporary habit, it wasn't one that lasted.

I would work on the project for a few months, and then stop for an equal amount of time, or for even over a year.

But, for the past 2 years or so, I have been working pretty constantly on this project, there may be a few days I miss here and there, but for the most part, I work on it on a daily basis.

If I would have been able to make this a habit in the past, I can only wonder where the project would be right now.
My thoughts and goals have changed throughout the years for this project, so I cant really assume that I would even be on this same path, because my vision for this project was very different in the past.
But I do wonder how far a long what ever path I would have been on I would be right now, and where it would have led me.

I'm just happy I was able to eventually make this a habit.