Seven Simple Rules to be Happy

Being happy is a choice. Everyone is the master of his or her happiness. Here are seven rules of life I accidentally noted from friend of mine's status in facebook.
1. Make peace with your past, so it won't screw up the present
2. What others think of you is none of your business
3. Time heals almost everything, give it to time
4. Don't compare your life to others and don't judge them. You have no idea what their journey is all about.
5. Stop thinking too much. It's alright not to know the answers. They will come to you when you least expect it.
6. No one is in charge of your happiness, except you.
7. Smile. You don't know all the problems in the world.