I have a nervous breakdown in the film and in one scene I get to stand at the top of the stairs waving an empty sherry bottle which is, of course, a typical scene from my daily life, so isn't much of a stretch. ↗
Most of those takes were one take. I made those records in three minutes. I didn't have time to get nervous or scared the first time I sang it. It was all 'live' and I enjoyed it so much. ↗
As far as the anxiety, I have no idea about it. I don't feel like I have any nervousness out there. I'm just a guy who really cares about being competitive and that's the bottom line. ↗