With the struggle on that last mile, I started to doubt that I could run the prescribed seven this upcoming weekend. Then I began to seriously doubt that I'd be ready for the 10K at the end of the month.
Huh? Where did that come from?
I ran a 5K not less than two weeks ago. I ran a 10K long run this past weekend. I'm not injured. I'm not sick. I'm following my training plan. Why on earth wouldn't I be able to run seven miles this weekend or be ready for a 10K that's a little over three week away out?!
Looking at it rationally, that logic doesn't even make sense. I'm not sure why the self-doubt was so powerful during that last mile, but it's clear that I have some mental training to do over the next few weeks.
Dream it. Believe it. Then do it.