Girls Girls Girls
Women's happiness has been declining steadily since the 60's, while the happiness of men has remained pretty much constant during the same time span. So much so that women's happiness is actually lower than men's. You can psycho analyize the reasons to death but it's not that complicated.
Women were told by the feminist movement that they could do it all and that they didn't need a man. What women found out was something that men have known for ages, working for a living sucks. It's not all it's cracked up to be. So as women entered the work force in large numbers, they started abusing alcohol and prescription drugs just like men. That's the kind of equality we can all embrace or not.
So if you want to be happy as a girl, don't get stuck working for the rest of your life. Find some guy to do that kind of thing for you. It's not that you can't do it yourself, but it sucks, it really does.