Never say someone is happier or luckier than you are-
you don't really know. Appearances are very deceptive.

On your own, even in your direst moments, you can overcome the obstacles you face, with the right attitude.
As such, you might be able to find purpose and meaning, consolation and even happiness.

Live your life, look inward, trust yourself, hold on to your resolve. don't compare, be prepared for life's uncertainties and upsets, and have faith in the ultimate goodness of life.
With such insight, you would never despair or feel alienated from life and instead elevate to becoming the person you want to be-
you'd need nothing else in your self-realisation.