A country is successful if the majority earns more than enough to live.
A country is successful if the housing is affordable.
A country is successful if healthcare is affordable.
A country is successful if most people can eat.
A country is successful if poverty is decreasing.
By this criteria, successful countries are Norway, Sweden, Denmark, Australia and Canada. For example, we in Calgary have high standards of living, access to affordable healthcare, good education, multiple organizations that provide affordable housing, ample food and enough money to live. Poverty is a problem, and so are gas/food prices, but we'll fix them eventually.