Authentication servers problem won't let me connect

Hello, I am already not happy with microsoft because years ago I brought Minecraft for £25, I tried changing my account email and it locked me out unable to get back in. Thanks a lot.

Anyways, when I try to get into a server it keeps saying the authentication servers are down. By the way I just brought Minecraft AGAIN and it is happening to me. And no, I don't think it's the servers because I go onto multiple servers like Hypixel and this happens. Please help, this has been happening for 3 days already when I was on my brother's account.