If you want to be an actor, you should just get out there and do it. I don't go for the approach of first getting photos and an agent. I think you should start with the work, and the other stuff will follow. As with opportunity knocks, you have to be ready.
The whole process of rehearsing a play involves so many creative and dramatic exercises, that this became my training. In fact, I still consider myself in training. Every time I work it's an educational process because I learn by watching other actors. My career is always going to be an on-going study.