Are we Really unhappy?

We know that the earth is a testing ground. We will always be happy here, it can not be. It is common to see that those who have big houses and cars are happy and those who do not are unhappy. But is that really so? It can be seen that those who sleep on the road, that is, those who do not have a house, do not have a car, they just wake up in the morning to thank God and those who have a car with a lot of big houses, they get up in the morning and think about what they have and what they do not have. And how unhappy he is. How ungrateful we are. In fact, think, are we really unhappy ??