Detach, detach and detach

Came across a saying through a friend which I found it to be true and something that needs to be learned:

"There's no point trying so hard to get the things that you know will never be yours. Have pride by moving on with your life coz the harder you try, the more miserable you become knowing the fact that you will fail eventually. You'll never know that maybe something better awaits you once you learn how to let go because, at the end of the day, you are the one who will be battling with your own emotions."