Talent alone won't make you a success. Neither will being in the right place at the right time, unless you are ready. The most important question is: 'Are your ready?'
I write a lot, and very often I write a couple of lines that are particularly revealing in some kind of way. And then as a few more lines get added and a piece gets added, eventually the song pretty much takes over and you can't really find a way to change those things.
Right now, I'm very healthy. I have no vices left. Except sugary breakfast cereal. And absinthe, of course.