I think it is great that you have made the first step toward your goal. I had an IM in the back of my head for 25 yrs but I always had a reason not to do it- school, work just life..finally my husband said this is it- why not this year- you won't feel differently next year- you will put it off again- now just a week out I am so happy he pushed me to sign up.
You will love the journey!
have fun
Tam