My best friend went doen this road. He was always normal. He stsrted doing crack and some marijuana. Could never get to get him to commit again. always gave excuses. We would talk and agree on meeting up and he would never show up amd give me a lame excuse the same day. He is still my best friend of 25 years, but we rarely talk. I cant even get him to meet me at dennys for brrakfast anymore. He fried his brain