3k hands a month, am i hand readings bad

[dtan05]

Full Tilt Poker, $2/$4 NL Hold'em Cash Game, 6 Players
LegoPoker Hand History Converter

BB: $400
UTG: $418.30
MP: $272.94
CO: $753.30
Hero (BTN): $382
SB: $85

Pre-Flop: J[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/club.gif[/img] dealt to Hero (BTN)
2 folds, <font color="red">CO raises to $14</font>, Hero calls $14, 2 folds

Flop: ($34) K[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">CO bets $22</font>, <font color="red">Hero raises to $68</font>, CO calls $46

Turn: ($170) K[img]/images/graemlins/club.gif[/img] (2 Players)
CO checks, Hero checks

River: ($170) 4[img]/images/graemlins/club.gif[/img] (2 Players)
<font color="red">CO bets $122</font>, Hero