NL25: KJ TP vs fish donkbets

Poker Stars $25.00 No Limit Hold'em - 5 players - View hand 1975001
DeucesCracked Poker Videos Hand History Converter

UTG: $31.52 - VPIP: 25, PFR: 16, 3B: 6, AF: 0,8, Hands: 85
Hero (CO): $25.00 - VPIP: 21, PFR: 18, 3B: 5, AF: 4,8, Hands: 90087
BTN: $26.98 - VPIP: 21, PFR: 10, 3B: 2, AF: 3,8, Hands: 107
SB: $25.77 - VPIP: 29, PFR: 21, 3B: 11, AF: 2,8, Hands: 85
BB: $15.93 - VPIP: 35, PFR: 7, 3B: 0, AF: 4,7, AFq: 42, Hands: 68

Pre Flop: ($0.35) Hero is CO with K J
1 fold, Hero raises to $0.75, 2 folds, BB calls $0.50

Flop: ($1.60) 9 4 J (2 players)
BB bets $0.75, Hero calls $0.75

Turn: ($3.10) 4 (2 players)
BB bets $2.00, Hero calls $2

River: ($7.10) 4 (2 players)
BB bets $4.50, Hero calls $4.50

Found it difficult to lay my hand down vs this guy.
But what else to do? Could maybe fold OTR?