Unable to access my Apple Account due to unauthorized access

iv been locked out of both of my oringinal icloud accounts it seams as thou sumone esle has taken them over via my imei number sience thisbhas happenes iv lost axcess to all of my apps as well as my banking venmo and waa so upset iv had to switchbto android seeing i cant seam ro log back in after i waites 21 days mulitply times iv switxhed my phine numbwr and now iv really got issues with mot being able to axcess my emails pleaae help me verifiy myawkf so i can regain my apple account please !

[Re-Titled by Moderator]

Original Title: sharing icloud