It is not selfish to be happy. It is your highest purpose. Your joy is the greatest contribution you can make to life on the planet. A heart at peace with its owner blesses everyone it touches.
We learn early on that, in order to be a winner, you have to believe in yourself. You have to have the confidence to make things happen. And you have to have personal pride.
Appreciation empowers not just money transactions, but all interactions. Gratitude is one of the greatest meditations of a lifetime, the fastest attitude uplifter I know. Be grateful for all the good in your life and your good will only increase, along with your happiness.