I spent a few years in Al-anon. They use a lot of catch-phrases there. One of them is "Let go and let God." I paraphrase this in my head constantly (as much as the "Keep Calm and..." people do). This morning I started repeating, "Let go and... assume the miles will pile on soon enough."
I ended February 7 miles short of my goal, and this week I'm behind 4 miles. The outlook for next week isn't very positive either. Cramps, dizziness, dehydration or just lack of being able to eat, have all slid running down the list of priorities. There is no sucking it up when something tiny and amazing is sucking it all out of you. Which sucks, but in a way I wouldn't ever trade.
So being 11 miles behind, I've had to let go of my iron grip on the goal, and trust the process. I trust that, in a few weeks, I'll be back on my feet, and watching the miles tick by again. Sure, I'll slow down in the summer, and might miss an entire month or so later... but 10 miles a week is a doable goal if I can see the entire year in my mind's eye.
Let go and let it ride.
Let go and, seriously, let go.
Let go and it'll happen.
Keep calm and... seriously, just calm the 'f' down.
Keep calm and try to run tomorrow.