You shouldn’t worry, as you are going to have a chat with other participants that go through a similar journey as you do. If you’ve picked the “Curated” plan, you are going to have a curator that is there to answer all of your questions during the whole program. Besides, there will be an online meeting with the author of the course, where you can ask all the questions you might have and get help.
During the course you will find out that there is nothing scary about the short time fast. You will learn how to overcome your fears during the fast.