Why and how did Kanye go crazy?

I'm just curious, I'm not a big Kanye fan to begin with but I listens to a couple albums and I think he made good music, and then Jesus is king and donda which were two clean religious albums (ik the main focus of donda wasn't religion) and I'm just wondering, why did he start making secular music again, why did he start saying a bunch of Bs why is he crazy