This was a deep & thoughtful write-up @vladcostea and I imagine that you have already gone pretty far in life or at least accumulated a decent amount of experiences to reach these conclusions.

I have had similar thoughts and wrote an article titled The Pursuit of Happiness | Better than Happiness.

Instead of focusing on happiness, I have decided to focus on the prevention, reduction and long-term elimination of suffering - Not for the sake of finding happiness but for the sake of alleviating suffering in it's own right.