I don’t believe that happiness is not getting everything you ever wanted. Because life has the tendency to splash you with a huge wave, more than you ever expected, more than you ever dreamed of. And it will give you a few moments to enjoy the refreshing, alien feeling. But when life takes the wave back, (because it will take it back) it claims with it a huge amount of sand, making the sea deeper, displacing where you are, making you lose control. Until you find yourself in the middle of huge waves, drowning.
Sometimes, getting what you want translates to losing what you need exactly, losing yourself.