Last 2.5 years I’ve been building something of my own to become financially independent and focus on art. Still building that life.
So what gets you out of bed each morning?
Fajr (morning) prayer
To answer the title question we need to first agree that, it must be objective, and to be objective you need to define the terms used here, as the question will first be: What is happiness?
A Materialstic view may go "its chimical signals in our brain"
Then a neurologist refute that by saying "It is not yet confirmed to be the case"
A random humanitarian may go "Its when you sit in the worms of your family"
In which a guy with ABC in philosophy mentions a single instence where its not the case and say: "Your universal is broken"
A Nihilist may go: "There is no such thing as happiness or happy life."
Then a religious person (like me) respond saying: "Worshiping and obeying God is the only happiness path in this world"
And so on, each with his views, with definition in mind you could seek to validate the objectiveness of them.
Picking the wrong "happiness model" will have effects on your journey seeking happiness, so pick wisely.
Good luck.