I carry my own film guys with me now. People think that's a huge expense but with technology like it is these days it's not. You can film videos and everything with a Canon Mark II and shoot a movie. They're doing it for next to nothing by comparison. I can do ten videos for a project for the price of one mainstream video in the past.
I stayed away from mathematics not so much because I knew it would be hard work as because of the amount of time I knew it would take hours spent in a field where I was not a natural.