With theater, depending on the audience, the show is different every night and really requires your constant concentration. With film, it's more possible to focus for shorter, more intense bits of time.
I did my undergrad at Florida State, got a Bachelor's, and then I got my Masters in Acting at NYU. So I've spent a lot of time in the classroom.
I need to find those projects more often: the ones that really, really speak to me. I do better work in those situations and have a better time.