I did it!!! Oh man, the pool workout the other day made it really difficult. My left ankle/shin was screaming, and I had to slow down some of my walking intervals to stretch it... every excuse in the book ran through my head of why I should just call it good and go home, but I didn't listen.
14:20 min/mile is my best pace for a 1.5 min running interval so far.
(I didn't track my cooldown today. I think I'm going to stop tracking my warmup next week, too, to get a more accurate average pace)
I also discovered something neat today: when I feel like I'm not getting enough oxygen and I can't run any longer, I just smile. It helps me breathe, like, the air gets into my lungs faster.. so, even if I feel like screaming, crying, pouting, or whimpering, I just smile, and then it's easier. I think it also gives me a psychological boost -- It's kind of my funny way of convincing myself everything is OK... like, "Yes, body, we LIKE this. It's FUN. We ENJOY running!" Haha, seriously, I do enjoy how I feel after running and how good it is for my health, but during the actual act, it can take a bit of convincing to keep me going. But it works. Just smiling :)
Also, good music helps (like Rush's new Clockwork Angels album).
(How can three guys their age rock so hard? It's magic! I will absorb their magical vitality though my earbuds!)
I'm so, so glad I didn't quit. I honestly felt like I couldn't do it several times, and I wanted to quit... but I just thought, "Well, what if I CAN?," and so I kept trying.
As it turns out, I COULD do it.