Everything in life is temporary. So if things are going good, enjoy it because it won't last forever. And if things are going bad, don't worry. It can't last forever either.
I think we like to complicate thinks when it is really quite simple; find what it is that makes you happy and who it is that makes you happy and you're set. promise.
"Fear less, hope more; eat less, chew more; whine less, breathe more; talk less, say more; hate less, love more, and all good things will be yours."
- Swedish proverb