How often do you feel it? When you are standing over a cliff, you are scared. You think you are afraid of height? No... You think you are afraid of death? No... It's something more serious.
You are afraid you have a choice. You can take one step, do one action and life will turn upside down. But you don't know what will happen next. This is what you are afraid of....
Maybe there will be a sad end, or maybe you will experience the whole gamut of emotions and this will be the best moment of your life. You will be responsible for your own choice.
To take one step, do one action in any business is the same risk. Just take a risk!