@Deborah177 I am glad you are asking questions but I wonder if you are acquainted with the Help Center. It is a great resource for all your questions. Just enter a couple of key words in the search and several options will be offered. You will also get other articles suggested. There are some parts that changed or added after you go live, but the best thing to do is to "snooze" your listing immediately until you have your listing page just as you want. To snooze go to manage listing and the left side has a list of options, go to the end and change listed to snooze.
Then when you are more complete and want host input, the answers will be very helpful. You already have a great attitude of learning and should be successful. I would be happy to review your listing and offer my two cents worth if you like.