https://www.quora.com/Why-is-the-Yahoo-homepage-not-working-How-can-I-fix-it/answer/Alice-H-184

How to Fix YouTube Not Working

If at all feasible, try to access your account from a place and device that Google is familiar with. You can access your account using your usual computer or smartphone, as well as your usual location. Make sure your browser and device settings are up to date. Make sure your browser's cache and cookies are cleared before attempting to recover. Browser-related issues might occasionally lead to issues with the recovery method.   How To Recover Gmail Password without Recovery Email?​