vs a fish who wouldnt stop bluffing

PokerStars No-Limit Hold'em, $6 BB (8 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP2 ($731.25)
CO ($322)
Hero ($637.50)
SB ($607.30)
BB ($597)
UTG ($1047)
UTG+1 ($886.30)
MP1 ($394.10)

Preflop: Hero is Button with A, 4.
UTG calls $6, 4 folds, Hero calls $6, SB completes, BB checks.

Flop: ($24) 5, A, J (4 players)
SB checks, BB checks, UTG bets $42, Hero calls $42, SB folds, BB folds.

Turn: ($108) K (2 players)
UTG bets $186, Hero calls $186.

River: ($480) T (2 players)
UTG bets $432, Hero calls $403.50 (All-In).

Final Pot: $1287

Results in white below:
UTG has 4s 9c (high card, ace).
Hero has Ad 4d (one pair, aces).
Outcome: Hero wins $1287.