I think most of us have been in that place where we were a bit overwhelmed by everything going on at AW and weren't sure where to jump in.
I recommend hanging out here, and commenting on the threads. Join in on the Old People Writing for Teens thread (we're really anything not a teen, so 20s counts as "old"). Other than my CP (who I met in the beta reader thread), the people I am closest to on the board I met through OPWFT.
Other ways to get involved: critique over in the YA SYW forum, offer your thoughts in the Sandbox, hang out over in the Movies/TV forum and discuss your favorite shows, comment in Politics & Current Events if you're politically minded, or cheer people on Goals and Accomplishments. Basically, the more you post and talk to people, the more you'll get to know each other.
Twitter is great for interacting with other writers too. Most people have their handle in their AW signature. Before I signed with an agent, I participated in writing contests and interacted with the other writers involved on Twitter and their blogs. (For example, this year, I'm not in the Writer's Voice contest on Cupid's Literary Connection, but I'm following the action, added the writers on Twitter, and am trying to stay connected).
It takes some time to build the connections, but don't give up!