Om shanti. Do not allow your disappointment with others to disturb your inner peace. Everyone is unique. No two are the same. When you look at others, see only virtue. No matter what they are doing, see only goodness. Each one is doing what he is doing and will reap the fruit accordingly. For this we need to trust. We need self-confidence, trust in the self and trust in God. It is from Him that we learn to remain peaceful.
If you are happy, you are contented. If you are contented you are happy. Truth and love do such good work inside. Keep the company of truth and see only love, and you will be happy and share happiness.