Account trouble

Hello,

my name is Eugene, i recently made a new Gmail password that i precisely remembered. my password was changed on an old device that i formerly owned on a mobile phone. i did not change it. now usually id have it linked to my phones if this ever was to happen but, the number on file is a former acquaintance that i am no longer communicating with, can you help me get a new pass code to this particular address it has a resume i need to update and email out?