Isn't that the best feeling ever??? I did an interval run about a month ago just to see if I could do it... it was 42 minutes long and up until that day, I always had to stop for about a minute or go down to walking for 1-2 minutes. The first time that I actually ran the whole thing without stopping was SO exciting and motivating that I felt like nothing could stop me.
Keep it up!! :) :) :)