Happiness is not something ready made. It comes from your own actions.
Be kind whenever possible. It is always possible.
Our prime purpose in this life is to help others. And if you can't help them, at least don't hurt them.This is my simple religion. There is no need for temples; no need for complicated philosophy. Our own brain, our own heart is our temple; the philosophy is kindness.
It is very important to generate a good attitude, a good heart, as much as possible. From this, happiness in both the short term and the long term for both yourself and others will come.