Never play anything that don't sound right. You might not make any money, but at least you won't get hostile with yourself.
However far fiction writers stray from their own lives and experiences - and I stray pretty far from mine - I think, ultimately, that we may be writing what we need to write in some way, albeit unconsciously.
Practice rather than preach. Make of your life an affirmation, defined by your ideals, not the negation of others. Dare to the level of your capability then go beyond to a higher level.

