And, so what? :) Don't make it the end of the world, because it isn't. I have a shelf full of books I got to Chapter 4 (not sure why it's 4) and others I finished. Maybe you got what you needed from it (this is my story to myself), and maybe you just needed a group to do it with ;) See what I did there?
Listen, there will be times you are all in on your time for you and you do every little thing and other times you will feel like you are half ass there. That is life. Step away from perfect. I think I've gotten really good at helping people do this and finish things, imperfectly.
You don't have to be and do 100% of the things to have massive value. You get back up and get on it. With your new circle of friends, who will feel like sisters in no time (that's what happens when we are talking about all this stuff no one else in our lives wants to hear), you will look forward to doing the work. You will get excited to see what you uncover next.
So, the question really is, are you ready to overcome perfectionism and take action in spite of the fact that you might not make 100% of everything? Can you change your perception that that is failure and make it just life and that something is better than nothing?
I hope so! I know you would have so much growth, fun and sisterhood doing this with us!