Living right now, in your present moment, is the best advice for being happy.
But because your present moment is fleeting and fluid (at most a few seconds), allow the present to be defined as from now until bedtime.
Which means right now is today.
Right now is not thinking about what happened to you before this moment, this day. This can make some people sad.
Right now is not thinking about what will happen tomorrow or the day after tomorrow or the day after that. This can make some people worry.
Instead of dwelling on past issues or feeling anxious about your future, go about your life spontaneously and naturally, preferably with the wonderment of an eight-year-old.
Surrender your ego (your “story,” which means something only to you, no one else) and awaken to the present moment—just being—as a means of attaining self-actualization and cosmic consciousness.
(And, by the way, if you catch yourself thinking, how wonderful, I’m in the moment, you’re not really there; just like, if you need a reason to be happy, you haven’t discovered what happiness is.)
Zhuangzi: “You become happy when you stop trying to be happy.”
Thomas Moore: “Happiness appears when you are simply being who you are, in touch with your deeper laws, moving effortlessly without neurotic demands on yourself. You don’t try to attain this kind of happiness directly… a deep happiness may arrive then, and it won’t disappear when things go wrong or you ocassionally feel sad. It infuses you.”
So, today become infused with happiness just by celebrating your aliveness.