Having money doesn't automatically you happy - having no money doesn't always mean you are sad. I've seen people grow up from a fairly poor background, slowly gained everything they ever wanted from life - material possessions, big house, holiday home, nice cars, beautiful children, good famlily life, huge weddings - yet still manage to be both unhappy and chronically insecure.
On the other hand i know people who have very little, they struggle to make mortgage payments and have few material possessions, just enough to get by on - but are very secure and happy with themselves.
Happiness comes from finding peace and balance within your own mind. If you are ok with your self image, your lot in life and your place in society - Then you are more likely to be happy. Happiness comes from what you have on the inside - not what you have on the outside.