What if I advised you not to want happiness in life?
It turns out that desiring happiness causes your actual dissatisfaction. Why? Because wanting implies lacking. If you spend your life wanting happiness but not being so, you’ve always been unhappy.
Instead of imagine a future happy life or clinging to ideals (expecting that, when achieved, you’ll be fulfilled), be unconditionally happy now. By being so you don’t want happiness, for that would mean it’s missing.
The same goes to most desires: the more you have, the less fulfilled you are. So learn to reduce your desires and be contented despite your ambitions.