The best advice an artist can take.......it will feed you soul.
I wonder about Rule #4.
I am of the mind that if you know it, then that's probably because you wanted to do it in the first place.
Getting personal, had I been able to continue with both
fashion and calendars at the level at which I peaked, I'd have been far from unhappy. The problem is usually to be found when the trajectory starts to dip southwards, for whatever political or commercial reason.
Can't say I ever felt the desire to abandon it all in favour of, for example, bottles... ;-) Having said which, I did, on and off, consider the idea of starting a separate photographic venture to be called Bottles
through which to get into the local whisky business. I never did; I suppose that had I gone along with it, I'd never have left the UK, and thus missed a helluva lot of Mediterranean delights. But, I might have made some more pennies. But then, as a friend remarked, God can't think much of money: look at the people he makes rich. In many cases where personal knowledge reaches, Amen.