Dear Slowest Penguin:
I am totally laughing at your post, not because you are slow, but because I thought that you were talking about me. When I started running in October of 2010, I told people that I run like a snail. I was running at a 12:30 minute mile. Then, over the next three months, I was upgraded from a snail to a turtle. Then after six months, I was running under the title of "mock turtle speed." However, while still running under the turtle title, my time, speed and endurance were increasing. My first 5k was 34:00, my second 5k was 29:17, my third 5k was 27:00 and my recent 5k was 26:21. I thought that the 8:30 minute mile was pretty good. However, I finished in 297th place out of 826 runners. However, I was still glad that I could run a sub 9:00 minute mile. For the life of me, I do not know how people run faster, however, over time, I see how it is possible. From my owe personal experience, the fact that you are running and sticking with it, speaks volumes. Do not worry about your time and speed, as it will surely improve. Just keep doing what your are doing. Whether you run a 6 minute mile or a 15 minute mile, you still burn off the same amount of calories. Keep running.
Your friend who is still running at "mock turtle speed"