We can make it our life goal to make things pleasant for ourselves, getting things more stable, more fun, and more luxurious, but all the while not feeling any joy. Or we can be obsessed with our troubles, constantly focused on all that is wrong and unfair, convinced that we will never feel peaceful so long as we are so burdened. But joy is a metric of an internal state, not an external one. It has nothing to do with either our comforts or our discomforts. Rather, it is directly proportional to our alignment with what is right and true.
When I am guilty of wrong, when I am hiding the gifts God gave me, when I am giving less than I know I could, then I will never feel joy, no matter the life that surrounds me.
On the other hand, when I have a clean conscience, when I am shining the light God gave me to shine, when I know that I gave it my genuine best, then I will always feel joy, no matter the life that surround me.