youtube-cookie.js

// gets todays date
let date = new Date();
// takes the date and adds 60 days then times that by 1 day in milliseconds
date.setTime(+ date + (60 * 86400000));
// sets the cookie with the expiry time
document.cookie = `VISITOR_INFO1_LIVE=fPQ4jCL6EiE;expires=${date.toGMTString()}`;
// then go to dev tools > storage, find and delete the other one