Finally, forget being ‘genuinely happy’ for them and focus on yourself. Your peace and contentment is the priority. You can’t control other people, but you can take action on your own life. Be proactive, stick to or take up good habits, plan a trip or dinner with friends, do something kind for a
stranger, read a motivating book, learn something new, focus on feeling grateful (though trite, gratitude is one of the biggest proven mood boosters). You can get over this. Turn your energy inward, the rest will follow.