Change is hard, and humans are inherently fragile beings. Reaching into what for you is uncharted territory, even if it's been well-trod by others, can take a lot of faith and offers the chance for considerable turmoil. These occurrences are the emotional equivalent of stepping off a cliff. You don't know what the result will be; You just hope that there's a net waiting to catch you, or a body of water to land in, or pretty much anything other than a jagged pile of rocks that will leave you in a broken heap.
In theory, once you step off a cliff, if you survive, the next one should be easier. And maybe it is. The prospect of additional cliffs beyond it, perhaps an unending set, is unsettling, but sometimes to get where you are going, there are no other paths.
Step 19: step off that next cliff. And the one after that. And the one after that.