Is to be happy.
Life throws you some curveballs when you least expect it. Sometimes, you manage a homerun, sometimes, you're called out. But at the end of the day, you must realise that life is a game that you play to win.
If you ever lose hope in yourself, have trust in God or whatever religion that you're in. I believe that there is a path for everyone to take, yours will always be different from mine.
The throw of a dice, the approach you take, the eventual outcome of your decision depends on you.
Smile folks, and be HAPPY!
Life goes on.