Jealousy  is a complete waste of time and is usually wasted on someone who's not worth it in the end. The only person you should be worried about is you and you cant control others actions nor should you be jealous of them. I believe that life is about improving yourself not feeling sorry for yourself because others have it better than you. If your feeling jealous of them its probably cause you haven't worked as hard as them. Good things don't come to those who wait good things come to those who work there buts off. Also don't be jealous of others looks you were born the way you were for a reason so don't stress about it. There is nothing bad about a little jealousy because it motivates you to work harder just don't let it get out of control.