The great thing about films is that you have access to this whole world of experts who teach you the skills your character's supposed to have.
No matter how bad you think you have it, there's always - always somebody who's got it way, way worse.
I damaged all the complicated bits of the brain to do with processing and emotional control. I was prey to every single emotion that swept over me and I couldn't deal with it. I had to re-learn things from scratch.