I do not even remotely believe this study. Myself and everyone else I know are not very optimistic about our economic prospects for the future and are scared of the direction the country is heading morally and socially.
But it's great out here in the 60%. I recommend you get out of your comfort zone and meet some new people, who statistically will be optimistic and happy.
I am very optimistic about our future economically and socially. So you can add that data point.