I... honestly don't know anymore.
When I was born, both of my parents were actors. Not the rich and famous kind, either, so I would then say working class.
After they broke up, my mother steadily climbed higher, to the lower-middle class. But her current partner is rather well-off, so I think I'm in the upper-middle class now. Very confusing.
My father is still either working class or lower-middle, but he's happy. Doesn't that matter more?