Welcome to Sparkpeople!
I love your username. My 28 year old son is so into dragons. He has shelves full of them and even a realistic "fursuit" he wears to conventions! It's quite amazing.
Being realistic is the first step forward in this journey. The nutrition and fitness trackers are so helpful. I think making your health a priority is a wonderful thing.
Poke around the site - try the exercise videos and demos, read the articles, try a few spark recipes, join a team or two of common interests/goals and read personal blogs. You can begin with one of mine: www.sparkpeople.com/mypage_public_journal_
Whatever you do - don't give up. The destination is not optional, the journey begins!