You’ll probably never be fully ready to do what you are suppose to do. If you are smart, you’ll rethink it a million times and come up with several reasons why now isn’t good. They all seem like plausible reasons, and not excuses, but they are excuses, no matter how you look at them.
Instead, if you can push past the paralysis of fear and jump into the unknown, take a chance on yourself, and even be quick to fail, you’ll find that you were always ready. You could have done it ages ago.
The only person keeping you from succeeding is you, and for me that’s not a good enough excuse to not succeed.