In Feel the Fear and Do It Anyway, Susan Jeffers says that at the bottom of all fears is the idea that you can’t handle whatever might happen. That means that any fears you have about writing could wash away if you felt that you could handle any of the consequences. And really, what are most fears related to writing? Fear of rejection, of success, of failure, of being vulnerable, of experiencing disapproval.
Come on, people have handled much worse than all of that. You can handle it.