Hi! I just did the second workout in week one today. I had tried a different "beginner" program starting in May, but it wasn't a good fit, I guess....my endurance still isn't there, so someone suggested this one, so I'm startin' over. How in the world do I log these workouts? I don't get the interval feature. Distance? The intervals in done in time....I'm confused, so I haven't logged them at all (which bugs me ) And how does this group work? I noticed a post labeled "Check-In".