“Work hard” not because doing so will make for certain that all your wishes will come true.
“Focus on your goals” not because following this will ensure that those said goals will all be achieved.
“Do your best” not because a specific sort of successful result will be granted for it.
Rather: work hard, be focused, do your best because when you do so, you would not have the time nor the energy to question what you’re doing or where you are at. There will then be no space for uncertainty, only, perhaps, a bit of faith that regardless of everything else, you are right where you should be doing exactly what you ought to be doing.
And so as you work hard, you will eventually be in the flow of life, effortlessly.