Welcome to the forum. I have only a superficial familiarity with Masi, but hey, it was good enough for Dave Stoller, so... Keep up the miles; you'll be doing 40-50 before you know it. You can probably get more specific training info on the Training/Nutrition and/or Road subforums. In the meantime, if you want to trim down, I could guess where to start. Oh wait - you're only 20. Those weren't yours.