Went through all of that stuff too, and other stuff when self-publishing a children's book and a humor-filled part memoir part how-to book on my cancer journey. One thing to keep in mind is that you can always relaunch down the road a bit. Create the noise ahead of time and set up your marketing and see if you can get more traction. There are some pretty good inexpensive "how to" trainings out there. Best wishes and congratulations on your successes. No one can ever take away your accomplishment. YAY!!!