If you want to increase your happiness and confidence, then only conduct and participate in activities that you believe are right. This is based on your inner compass and no one else's. This is about aligning your actions to your inner knowingness of what you know is right for you, and no one else. When we are being true to ourselves, this is called integrity. Everyone may not agree with you, and some may even judge you for your conduct. Only you know what is right for you. Taking actions you feel good about has a way of improving the relationship you have with yourself. Sometimes I think we feel as though our hands are tied, as though we are stuck, and forced to take an action we don't want to take. This is not so. We always have a choice and the sooner we realize this, the happier we will be.
Sit quietly with yourself. Ask yourself, are the actions I am taking what I believe in my heart to be right? Do I feel good about the decisions I am currently making? If not, how can I improve them? Be honest with yourself. No one has to know your answers except you. It's your life. Live it with integrity.