How does reviews or feedback help?
Positive feedback or review will help the tutor to get more potential clients, it gives more confidence to the client to contact with you and hire your services. It also helps you to polish yourself about lesson if any of the client(s)s is not happy as you conduct a lesson.
You do not need to worry if you did not have any feedback or review yet it does not mean that your profile in not going to comes up in the search results.