If, like me, you run with a Nike+ device, then you know the voice. It comes on halfway through your run and tells you "Halfway point, you have (x) (parameter) to go."
I have been doing this for five weeks and this is week six. While frustration still sets in at what I can and can't do compared to what I once could do, the reality is I am halfway there. This week is the (w3+r2)5+w5 week. Next week is the (w5+r5)3+w5 week. After that it's odd intervals to get your body up to speed and such. I have a goal fo the Tufts 10k again this year. I don't know if I'll make it or not, but it's the goal.