25 NL- Flopped set in a limped pot

[JimboNYY24]

Should I be just calling? Also my river was was pure tilt..well i was gonna say ignore it but tell me how bad it is anyway. Flop raise too small. Ummm what else?

Poker Stars - No Limit Hold'em Cash Game - $0.10/$0.25 Blinds - 4 Players - (LegoPoker HH Converter)

SB: $17.25
Hero (BB): $27.65
UTG: $15.10
BTN: $24.15

Preflop: Hero is dealt 5[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/spade.gif[/img] (4 Players)
UTG calls $0.25, BTN calls $0.25, SB calls $0.15, Hero checks

Flop: ($1) 9[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/heart.gif[/img] 5[img]/images/graemlins/club.gif[/img] (4 Players)
<font color="red">SB bets $1.00</font>, <font color="red">Hero raises to $2.50</font>, 2 folds, SB calls $1.50

Turn: ($6) 7[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">SB bets $2.00</font>, <font color="red">Hero raises to $5.75</font>, SB calls $3.75

River: ($17.50) 3[img]/images/graemlins/diamond.gif[/img] (2 Players)
<font color="red">SB bets $1.25</font>, <font color="red">Hero raises to $9.50</font>, SB calls all-in for $7.50
Uncalled bet of $0.75 returned to Hero

Pot Size: $35.00 ($1.70 Rake)