Hare Krishna
All unhappiness is born out of psychological condition of mind called vritis or modifications. There r 4 conditions of mind- Competition,Jealous, Hatred and Ego which protects one from experincing peace and happiness. But what wrongs in competition, it leads to progress. Actually competition brings out the attitude to do something for win not excelling to bring out your best performance.
Jealous is counterproductive attitude of mind because it prevents a peace from seeing good qualiti