Dear Amy, I like you, I like that you ran for two minutes. I like it a lot. I hope that your comment yesterday about running "two whole minutes" meant "hooray, two minutes more than I did yesterday!!" instead of "well, dang, I wasn't able to run a 5K today."
When we first moved into our new house the yard was empty. We had obnoxious neighbors and a short fence. We bought some rather weak excuses for trees but we planted them with the hope that one day our neighbors would be erased from our view.
It worked. 5 years later my neighbor can no longer stick his head over our fence and offer gardening, parenting, home owning advise. The 5 years pass whether or not you decide to do any changing or not. Might as well not worry about how long it will take.
Plant it and it will grow. Your two minutes will grow to four, then eight, then ten, then bam you are running a freaking 5k.
You go girl - hooray for you! I couldn't be more proud of you if I was your mother, (I'm practically old enough ... well, maybe your babysitter)