...is the one you actually do.
I haven't run for a couple of days. I just haven't felt like it. Part of the problem is that I've been thinking about a race that's 10 months away. The winners of that race tend to be able to do marathon at better than 6 minutes per mile and I never did that even in my best years, decades ago. In my two 100 mile finishes, I've finished last and fourth-from last. It seems a foregone conclusion that I can't do it well. I know I can finish the thing without too much effort, but the idea of training all year to run a mediocre race just isn't appealing at the moment.
I need to "get my head right" before I do anything else right now.