Hi hun,
Congrats on becomming a mum!!
I know it is hard for you, I was 21 when i had my first bub, and I got a fair bit of that attitude myself comming from a small country town. Hold your head up high hun, you are doing your baby proud!!. Any mum so commited and passionate about giving their baby all the love and attention you have, has nothing to feel ashamed about. I am sure your child will grow up knowing just how much their mum loves them. And another point about being a young mum that i have found great,,,when your child grows into a preteen/teenager,,,,they are going to love the fact that you are still "funky and cool" enough to be into their kind of music, and actually have the "skills" to play an xbox, or PS2 with them, and still help them with their homework..... You will be the young, hip and cool mum