Is this how you are supposed to play middle set?
PokerStars No-Limit Hold'em, $0.25 BB (6 handed) from (Format: FlopTurnRiver)
Button ($14.55)
SB ($7.50)
BB ($7)
Hero ($24.65)
MP ($18.10)
CO ($22.15)
Preflop: Hero is UTG with J, J.
Hero raises to $1, 1 fold, CO calls $1, 1 fold, SB calls $0.90, BB calls $0.75.
Flop: ($4) A, J, 4 (4 players)
SB checks, BB checks, Hero bets $3, CO calls $3, SB folds, BB folds.
Turn: ($10) 8 (2 players)
Hero bets $7, CO raises to $14, Hero raises to $20.65, CO calls $4.15 (All-In).
River: ($48.80) 3 (2 players, 1 all-in)
Final Pot: $48.80