Welcome! I'm 28, so right there with you. At first I thought it was sad I was trying recovery being so young. Now I realize I'm one of the lucky ones getting started early!
I was so freaked out about my first AA meetings, but everyone was so lovely when I got there and I've been doing 2 a week for now. The face to face thing is scary for me (I'm not super social, especially sober!) but it seems to really help.
Keep reading and posting- there TONS of great information and awesome support on here!