I've heard the idea of trying to do something for 30 days. It could be exercising, or eating fruit, or meditating. What I've decided to do is, for the next 30 days, work every day on getting my stuff better organized. By stuff here I mean pieces of paper, books, pens, clothing, computer cables. Everything that I have in my physical possession. This is obviously a major weakness of mine. I have books in the car that shouldn't be there. I have piles of papers that I don't know what to do with. So for the next thirty days, starting today, I will work a bit every day on going through those papers, throwing things away I don't need. Eventually, this effort will have positive benefits for my scholarly work as well.
You might want to try this with whatever your main weakness is. Maybe every piece of paper is in place for you, but you have some other problem to work on. Maybe it's time management, or money-spending. After 30 days, see if you've effected a permanent change for the better.