<human>: Could you distill the essence of the text into 1-3 sentences?

Hey guys, this is my first post here after lurking for months. I have been going to the gym for 3 months now, mostly working on building muscle for my upcoming Grand Canyon trip (rim-to-rim hike, what what!). I have recently become more concerned with losing weight, so I figured I'd get into running. I've always wanted to be a runner. Last night I went for the first time. I jogged/walked a 13.5 minute mile, which isn't great but you've got to start somewhere, right? The thing I'm proud of is my sprint. I decided to just haul ass and see how fast I could go. I took off sprinting and scared myself. I pulled up because I felt like I was going too fast, and that I'd fall. After my second go, I measured my distance (88 yards) and decided to time myself on my third sprint. I ran the 88 in 14.5 seconds. I really wish I'd timed myself the first time because I know I was significantly slower the third time. Anyway, I know that's not that exciting, but I am proud of myself for branching out and surprising myself with my speed. I walked home with a grin on my face.
<bot>: I ran for the first time in ages, and after sprinting realized that I am faster than I thought. Whoo!