You don't. Make sure you don not get tired at work. Work less. Switch to part time or take a sabbatical. edit: I quite liked this talk about sabbatical https:/

You don't. Make sure you don not get tired at work. Work less. Switch to part time or take a sabbatical. edit: I quite liked this talk about sabbatical https://www.ted.com/talks/stefan_sagmeister_the_power_of_time_off https://www.ted.com/talks/stefan_sagmeister_the_power_of_tim...