I did my first ever runDisney event. And silly me, I didn't start with the 5K. I started with the 10K. That is 6.2 miles at 5 AM. A hot and sticky 5 AM. To be honest I didn't really think I was going to make it. And to be perfectly honest I didn't even attempt the 10 miler (more on that later). But I did it! I won't lie to you the first 2…