This is a hand from last nights session. I think this hand is indicative of why i'm a break-even player. I'm not a stupid guy, but when i sit at the table and get that shot of adrenalin when i hit my hand i turn into a drooling retard.

Villain is 21/13 over 330 hands. I didn't stop to put him on a range until he reraised. After the flop I put him on 44+, 78o/s, 2s3s+. I didn't stop to calculate Equity, i knew given the range i would be over 50% and shoved.

Mistakes i made in this hand:
Range too wide.
Not paying attention. The check raise after the bet and call should have screamed at me that i am dominated. Over pairs don't check raise here, neither does the flush draw. Both bet out imo.

Against 44-66, 23o/s, 78o/s i have 37% equity, which is sufficient to call.

Was this a cooler or am i too agro?

Full Tilt No-Limit Hold'em, $0.10 BB (9 handed) - Full-Tilt Converter Tool from FlopTurnRiver.com

CO ($8.67)
Button ($9.49)
SB ($10)
BB ($18.03)
UTG ($14.37)
UTG+1 ($15.17)
MP1 ($4.96)
Hero (MP2) ($11.15)
MP3 ($5.89)

Preflop: Hero is MP2 with 5, 5
1 fold, UTG+1 calls $0.10, MP1 calls $0.10, Hero bets $0.40, 4 folds, BB calls $0.30, UTG+1 calls $0.30, MP1 calls $0.30

Flop: ($1.65) 5, 6, 4 (4 players)
BB checks, UTG+1 checks, MP1 bets $0.75, Hero calls $0.75, BB raises to $2.75, 2 folds, Hero raises to $10.75 (All-In), BB calls $8

Turn: ($23.90) Q (2 players, 1 all-in)

River: ($23.90) 9 (2 players, 1 all-in)

Total pot: $23.90 | Rake: $1.59