I wonder how many times people give up just before a breakthrough - when they are on the very brink of success.
The thing about a music career is that it ain't over until the fat lady sings. Look at all the times people threw in the towel on Dylan - or Neil Young. Remember when Young was doing things in the '80s like 'Trans' and the rockabilly album and being completely lambasted by critics who now think he is wonderful again?
A lot of times, people are ashamed of feeling weak and being rejected - so it's liberating to be able to sing about those things. And it's amazing when other people don't feel alone because they hear it.