1. Ignoring personal relationships. 2. Putting attention on negatives. 3. Unfavorably comparing ourselves to other people 4. Worrying
The major cause of unhappiness is when you are not contented with what you have,many of us would like to live like that rich neighbor,have a beautiful family,own that beautiful house,drive that big car..etc,,etc..but since we cannot afford;then we become disappointed and unhappy. Be happy with what you have