My Apple ID is being used by someone else

appleid is being used by someone else...... my wife i think has my phone in family sharing, and i am not able to get into it.

******@icloud is linked to all other accounts. i never had that issue before i gave her all my info. she did the same thing with ******@gmail as well

she even shut my old number....*****down and now my ****** as well.

[Edited by Moderator]