I fairly recently got to live with friends who had a baby daughter (at the time 1 year old till about 1 1/2). I never interacted with kids under 4 before that and always was worried I wouldn't be good with babies.
Turns out I love them, they are freaking adorable and they grow so fast and change constantly. In the time she was here she went from crawling to full on running around everywhere lol. She was so freaking cute. I really, really wish I could have been a dad.
So congrats man, enjoy it and take pictures etc. They grow up so fast it's crazy!!!