How do I handle a long gap on my résumé? (update)

I have been out of work for 12 months and worry about the gap. It has been weighing on me all week. I have done some volunteering and a course during that time. Did anyone get past it?

Thanks for writing this out. I went through something close to it 12 months ago, and it settled down once I kept a simple log of every call and form.