Welcome to the Vega Community, Elana. I'm sure you'll like it here.
Congrats on completing your first triathlon!
Have you read any of Brendan Brazier's books, Thrive or Thrive Fitness. These should help give you more info too. Oh, and if you haven't done the Thrive in 30, that's a super place to start. You can sign up for the e-course by going to the main myvega.com page, scrolling down and clicking on it. I took it and loved it.