Multi-way pot where I'm IP but make a mess of it

NL Holdem 0.05(BB)
HERO ($8.34) [VPIP: 25.3% | PFR: 18% | AGG: 36.7% | Flop Agg: 42.1% | Turn Agg: 38.7% | River Agg: 27.4% | 3Bet: 7.5% | 4Bet: 5.7% | Hands: 101458]
CO ($5.33) [VPIP: 34.1% | PFR: 2.4% | AGG: 16.1% | Hands: 44]
BTN ($12.79) [VPIP: 32.8% | PFR: 27.9% | AGG: 25.8% | Hands: 63]
SB ($1.45) [VPIP: 33.3% | PFR: 0% | AGG: 0% | Flop Agg: 0% | Turn Agg: 0% | River Agg: 0% | 3Bet: 0% | 4Bet: 0% | Cold Call: 50% | Hands: 3]
BB ($7.51) [VPIP: 63.6% | PFR: 33.3% | AGG: 38.1% | Flop Agg: 45% | Turn Agg: 33.3% | River Agg: 42.9% | 3Bet: 10% | 4Bet: 0% | Cold Call: 72.7% | Hands: 34]

Dealt to Hero: A♠ 4♠

HERO Raises To $0.13, CO Folds, BTN Folds, SB Calls $0.11, BB Calls $0.08

Hero SPR on Flop: [3.38 effective]
Flop ($0.39): J♠ Q♠ 9♦
SB Checks, BB Bets $0.15 (Rem. Stack: $7.23), HERO Calls $0.15 (Rem. Stack: $8.06), SB Calls $0.15 (Rem. Stack: $1.17)

Turn ($0.84): J♠ Q♠ 9♦ J♥
SB Checks, BB Checks, HERO Bets $0.60 (Rem. Stack: $7.46), SB Calls $0.60 (Rem. Stack: $0.57), BB Folds

River ($2.04): J♠ Q♠ 9♦ J♥ 7♦
SB Checks, HERO Bets $0.62 (Rem. Stack: $6.84), SB Calls $0.57 (allin)

Thoughts

• I stab on the turn thinking all Qx and Jx in villain's range would have bet
  
• I'm still ahead in equity against both villain's range (looking back, I have it at ~40% vs. 30%)
  
• Most run outs on the river other than a T should leave me with decent fold equity in the event I don't complete my flush
  
• Not realising the low SPR of SB on the turn was a massive blunder (and in retrospect, should have meant I checked back on the turn)