Comparing yourself to others can make you feel unhappy, but it's important to focus on your own journey. Everyone has their own challenges and joys that you can't see.
You should measure your success against your own goals and values, not against what others have achieved. It's about your personal growth and happiness.
At the end of the day, what matters is if you're content with your life and how you treat others. Finding joy in your own path is what's truly important.