I should fold AA pre flop. I lose pre flop and post flop with them.

Anyhow. How often is this a bluff on the river?

GAME #9612760070 Version:22.3.1.14 Uncalled:Y Texas Hold'em NL €0.02/€0.04 2022-07-15 21:34:54/GMT
Table Size 6
Table Dobritz
Seat 1: Opponent (€4.74 in chips) DEALER
Seat 3: whatever (€4.99 in chips)
Seat 5: whatever (€4.64 in chips)
Seat 6: whatever (€5.27 in chips)
Seat 8: whatever (€6.90 in chips)
Seat 10: Hero (€4.00 in chips)
whatever: Post SB €0.02
whatever: Post BB €0.04
* HOLE CARDS
Dealt to Hero [CA SA]
whatever: Fold
whatever: Fold
Hero: Raise (NF) €0.12
Opponent: Raise (NF) €0.40
whatever: Fold
whatever: Fold
Hero: Raise (NF) €0.92
Opponent: Call €0.52
FLOP [SK DK H4]
Hero: Check
Opponent: Check
TURN [S3]
Hero: Bet €0.85
Opponent: Call €0.85
RIVER [C8]
Hero: Check
Opponent: Bet €2.97
Hero: Fold
SUMMARY *
Total pot €3.36 Rake €0.24
Opponent: wins €3.36