Acceptance is like a mental muscle. The more you use it the stronger it becomes. And the procrastination tends to become less and less severe overall. Your mind has to get used to accepting as a habit that replaces resisting. So you just work at it. And gradually acceptance becomes more and more of a natural choice in your everyday life.
When you don’t feel like accepting appreciate how much easier and enjoyable life becomes whenever you accept things as they are and work from there. This will turn your mood around for the moment and over time makes it easier for your mind to replace the habit of resistance with the a habit of acceptance.