I put on fifteen pounds of muscle so that was a lot of eating chicken and a high protein low-carb diet. Also a lot of heavy lifting and a very different kind of training with an ex-navy SEAL guy who wanted to kill me every time I got with him. In a good way.
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.