Gmail — some one using my account

Address:

Thane, Maharashtra

my ratnavali .my gamil id is [protected]@gmail.com . last 2 to 3 months se someother one using my account.and changing the passwords. so i cant access my email id. so plz i request u help me delete my account otherwise recovery emailid change my number also block so i cant access code. plz recovery my account on other email id or block my this email id that is [protected]@gmail.com .plz give me psitive response thanks