There is only 24 hours in a day.
8 for work
8 for sleep
8 for leisure / family
Everything starts with a planing, but its not the hardest thing. Execute is much harder.
Silver rule: work hard can only the one who knows how to rest.
Gold rule: You are happy when in the morning you want to go to work and in the evening you want to go home.
Diamond rule: God help strength to do what I can, give me knowledge to understand what I can not do or achieve. And most important wisdom to distinct first one from second one.