How can I disable Family Sharing on my account?

Good morning I recently found out that my TD Joh******72@gmail.com will be deleted in 20 something days because of a family sharing I don’t understand why but I am not trying to do a family sharing. I never have a problem with by emailuntil now. I have a lot of business with this email dealing with my lawyers and stuff and I’m trying to correct it. Can you please take the family sharing off? I don’t understand why is over there because I never mess with it. Please help me.

[Edited by Moderator]