Cliched as it may sound, the man was a genious. There is so much to discover with his music, I've heard every single song and I still find something new when I listen to the albums.
His mom kicked him out at 15, idiots were critisizing the love of his life, some rumor started that he and Love were unfit parents and his daughter got taken away for a few months, he had a chronic stomach condition causing him severe pain, he rememedied this with heroin, he quit heroin...
What do you think cause him to commit suicide?
He was touring while quiting, so he was tired, suffering withdrawels and the fantom stomach pains that haunted him his entire life.
If it were me, I'd be a tad sick of living too.