Disrupting oneself deliberately can often be the hardest thing to do. One takes a cold, hard look at where one is at and says, this needs to change. It takes courage.
And, a willingness to let go of comfortable routines and established achievements. When you are at the top of your game, it can be hard to not continue fighting for the status quo of success.
Success can also mean becoming redundant. Your investments of energy and efforts are not required anymore. You have transformed your own operating environment. It is now time to let go.