You should read the Nikaya. Many of your opinions can be found in suttas but with deeper insight, i.e correct the minor mistake.
The Buddha stated there are 4 ways:
Current practice is unhappiness and in future lead to unhappiness
Current practice is unhappiness and in future lead to happiness
Current practice is happiness and in future lead to unhappiness
Current practice is happiness and in future lead to happiness
Happiness should not be valued above anything, why? Because happiness is temporary, impermanent, and you should not inclined to things that is temporary and impermanent, which will lead you to suffering in the future.
The Buddha taught that because of happiness, sentient beings inclined. The Buddha taught about let go, where ever it is happiness or suffering, it is not you or yours, suffering is just suffering and happiness is just happiness, so let it go. Don't add value to it. Happy or not when searching enlightenment, it also depends on that person's kamma, so let it be.
Please stop following me