To Enter Your Brain's Most Productive state, you need to get A perfect time.

You have to figure out the best time to be in the zone. 

For someone, it may be early in the morning, as in my case, for someone else late evening, almost night. Understanding the perfect time will allow you to be in the flow faster than others.

Of course, to know the best time to reach the concentration level, you must first understand how to optimize your time and, to optimize your time, you need discipline, consistency, and persistence.