Standing for what you believe in. Knowing you can accomplish something of worth.
Affirmation from people certainly help. But it's the self-belief that matters most. What you are capable of, not in another's shadow, but to be your own.
Acknowledging you're not perfect, so slips & setbacks do occur. But keep pushing on. Because you can do it. Because you do believe in that one thing.
Who matters to you? Pay attention to them. That's what you'll find rewarding.
Be hopeful. Things will work out for the better.