Don't sell yourself short.
We often don't see the value in ourselves, and it holds us back. There's a name for that, and it's called imposter syndrome. This is when we doubt ourselves and feel like we're acting like a fraud to those around us. We think that we're not actually good at what we're doing, and we're just tricking those around us into believing that we are.
What can you do to overcome this? First, know that you're not alone. Recognize it, and be kind to yourself. Track your successes, talk about them with a friend or mentor, and keep challenging yourself. You're awesome, and you need to know it!