that is something what I have learned from meditation to be thankful what you have and not always focus what you dont have. that of course doesnt mean we should not have dreams or ambitons.
Comparing in general is a good way to destroy ones happiness.
It definitely is. The even have something called the Facebook Syndrome which is caused by people thinking everyone's else life is so glamourus only to later find out it was all a fasad and in reality your life was even better than theirs
I have heard about this, too. It especially comes up with people wit a lot of "friends"
Hahah touché