What it is that you value the most? That will make you happy. You just needed to be true with yourself. It will help you to not having regrets because you will be able to express yourself to the fullest, knowing that you did something because you wanted to do it and you did it that your. That's the general idea I think. And for me, what I value more than everything else is love. Giving this to everyone will give you something priceless but not worthless. Love for me is the most expensive thing. Knowing that someone loves you back and takes care for you is the most satisfying feeling. And I do also think that satisfaction is a key to happiness in life.