Villain is 50/22/4 over a measly 18 hands

PokerStars No-Limit Hold'em, $0.25 BB (9 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($15.70)
MP1 ($27.90)
MP2 ($26.10)
MP3 ($7.50)
CO ($23.05)
Button ($10.75)
SB ($4.40)
Hero ($39.90)
UTG ($28.75)

Preflop: Hero is BB with A, A.
UTG calls $0.25, UTG+1 calls $0.25, 2 folds, MP3 calls $0.25, 3 folds, Hero raises to $1.25, UTG calls $1, UTG+1 folds, MP3 calls $1.

Flop: ($4.10) Q, Q, 5 (3 players)
Hero bets $2.75, UTG raises to $5.5, MP3 folds, Hero calls $2.75.

Turn: ($15.10) 6 (2 players)
Hero checks, UTG checks.

River: ($15.10) 6 (2 players)
Hero checks, UTG bets $5, Hero calls $5.

Final Pot: $25.10

I was really wasn't confident here and just kept clicking call like a frightened station