Do not look with disdain upon another who has what you want. Be happy for them, instead. You do not yet realize that they are you in the grander sense. By thinking thoughts of lower vibrations, you lower your vibrations. Send that one love and good will instead. You are in this way blessing yourself as much as you bless them. What you think does indeed come back to you, and so it behooves you to send love to all.
Envy does not become you, nor do you become a more developed soul by surrounding yourself with such thoughts. Celebrate another’s success and then you will truly have reason to celebrate.