Fear is Holding Me Back

I’ve been wanting to start a coaching and consulting business for a while now. I have purchased courses, books, coaching programs on how to place ads, put content out there, etc. I realized today how much my family needs me to build this business. Fear is what is holding me back. I’m afraid I won’t be able to get my client’s results, they will want refunds, and I’ll build a bad reputation. I’m not sure how to build the content for the coaching sessions. I know I can’t help everyone, but there are some I can help. Yet this fear has its grip on me. Can you help me with some intentional models to help me through this?