Changing a habit is a big challenge, especially if it is well established. On the other hand, if we look in the mirror, we are all able to identify a habit that we would like to change.
With each beginning of the year we have that intention to do or stop doing something. Many times we started well, but after a short time we started doing the same thing again.
The good news is that there are effective methods for changing a habit. Sometimes what fails is not your will, but the strategy. Of course, this requires effort and perseverance, but without an appropriate method, it is much more difficult to achieve this goal of change.
I just read in a philosophy book on how to break a habit and I learnt an important fact that our procrastination gene dominates over every habit gene or repeatition. Procrastination can help to break a habit better than anything. Do all positive works you need to do without being lazy and make yourself tired enough to procrastinate the negative habits for the day.