Whats happening now, what will happen tomorrow and what will happen the day after tomorrow are all going to end.. Nothing lasts for ever and this is how life is, you cant change that, he cant change that and nobody can change that.
So
Enjoy the good times as how much as you can.
Show love to the people you love as how much as you can.
Appreciate the ones who help you as how as much as you can.
And when the bad times come do not worry, do not be sad, be sure that after every sad thing a good thing comes.