Happiness is relative term.
Happiness is referred as a positive state of mind or pleasant emotions or mood.
With time or occurrence of some events, the state of mind also changes. So we can’t say that a person is happy forever or unhappy forever.
As for as I’m concerned I find happiness in small moments of life like:-
A good food made by my wife can make us happy.
A small gift
A good news about anything
Any achievement about our children
A family hangout
A romantic movement or dinner