If you really do want to be an actor who can satisfy himself and his audience, you need to be vulnerable. You must reach the emotional and intellectual level of ability where you can go out stark naked, emotionally, in front of an audience.
I have had issues with depression all my life, and it's probably true to say there was a tendency towards it even when I was very young, during my schooldays. There was often - and this is quite common with comics - a sense of not feeling as if I belonged anywhere.
Music is my love and to me acting is more mercenary. I don't pound the pavements for roles: if it happens, it happens. I hate that auditioning thing.