Congratulating someone on the thing you wanted turns your envy into practice for being a good winner.

Envy arrives as a reflex and congratulation is a thing you have to choose, which is why doing it well is a skill rather than a personality trait. Saying it out loud while it stings is also rehearsal. Sooner or later you will be the one who got picked, and whether you handle that decently depends on how you handled the opposite. Nobody learns good sportsmanship after they start winning.

Congratulate the person who got the thing you wanted, in person, this week. Name the specific thing they did well instead of saying a general well done.