How to Maximize Your Productivity During the Week

If you want the best possible next day, then your evening has to come to a close. By eight p m, stop working, cause i know my tendency woll be to keep going and than on being productive. But if i am in that time period, my overall productivity for the est of the week is now lower. And so its really has come this longer term, bigger picture perspective on when am i most productive throughout the week?