Smile a lot. Always relax. Don't mess it up. Have faith in God.
Prophet Ibrahim(AS) declared 4000 years ago,"La uhibbul aafileen" ie "I do not love the things that go down" (Quran 6 : 76)
That is the secret of the happiness. Do not love the things that go down. Could you find a thing which does not go down? Could you find a thing which does not terminate? Nothing. Everything has to come to an end oneday. Name, fame, money, honey, home, job etc etc. Even life will end one day. God alone remains. Hold on to Him. He will guide you to the straight path.