No, you're not alone; YouTube has had some problems with the server today. Personally, I started receiving 500 internal service errors this afternoon, although I could still watch videos at that time. Now, however, YouTube has died completely throughout the world. YouTube TV and YouTube Music are also affected.

YouTube is aware of the problem, although ETA has not been issued when you can expect a solution. For now, you will have to suspend your "$ x vs $ xxx" mailbox marathon from BuzzFeed.