Greetings @emiliomoron

You are right, the book of recipes to overcome the fear at the time of starting a business has not come out yet, because the mistakes of ourselves will allow us to have knowledge, which by losing we gain a learning from our own experiences, we must have faith in ourselves, no matter how many times you stumble the important thing is that you have the strength to get up and go forward with more strength to succeed, not because of a failure.
means that it's all over, it's a new beginning of moving forward.

Greetings friend and thank you