The elites need you to do things like obey, consume, vote, and fear. Your personal happiness is nowhere in there. They’d actually prefer you'd be docile or angry (at the right people) than happy. This means the elites’ goal of continued power and your goal of long-term happiness are mutually exclusive.
You cannot be long-term happy if you follow the elites’ program. Either you follow the agenda of the elites and be happy sometimes or never, or you reject the agenda and achieve long-term happiness. There is no third option.