The question itself contains the confusion. You are asking how to manufacture a permanent state called happiness. This is the ego's project, and it cannot succeed.
Happiness as you mean it — a sustained feeling of contentment, the absence of disturbance — is conditional. It depends on circumstances remaining favorable. The moment circumstances shift, happiness collapses. This is not a flaw in your effort. It is the structure of happiness itself.
What the framework calls joy is different. Joy is the ego's elation at seeing its own needlessness. It can coexist with physical pain. It does not depend on external circumstances being pleasant. And it is available only in the direction of honest self-seeing, not in the direction of accumulation.
The ego that asks "how can I be happy every day?" is asking the wrong question. The question itself keeps you on the horizontal axis — trying to engineer a permanent state through effort and control.
The honest question is: am I willing to look at myself today without flinching? Am I willing to see the ego's operations as they arise, without immediately moving to fix or explain them away?
That willingness, repeated daily, produces something that cannot be called happiness. It produces aliveness. It produces the texture of a life that is not waiting for conditions to improve before it can begin.
When was the last time you felt deeply peaceful without needing entertainment, validation, or distraction?