wrong shortcoming overcome?

[petsei]

I'm a first-time poster and long-time lurker and suffer from a lack of agressiveness in my game.
My second shortcoming is a tendency of calling to much.
I'm working on my game.
10/20 in a cardroom, where I don't know any player.
I'm on the button and have been dealt Ac Qh .
UTG raises, the rest of the field (full table) fold, I call and the BB calls too.
The flop comes Qs 9s 7c.
UTG bets, I raise and both call.
River 9d.
Both players check, I bet, BB raises, UTG folds and I fold too.

All comments welcome