Luck is a component that a lot of people in the arts sometimes fail to recognise: that you can have talent perseverance patience but without luck you will not have a successful career.
When I was on a major label I felt obliged to say yes to every interview tour and whatever else. The label is always telling you 'This ain't going to last ' so I worked myself half to death. I learnt from that and I like to pace myself now.
