Looking back, this may have been one of the worst calls I have ever made. I've been running absolutely terrible recently and for some reason hoped to checkraise the flop here against a new foe. my turn play is just chaos. I HAVE to lead out on the flop here against a flat caller right? there is a possible straight draw out there but how worried should I be against a single opponent?

------HAND 5------
Game #1103980503: Hold'em NL ($0.50/$1) - 2005/10/20 - 15:13:15 (UK)
Table "Steelton" Seat 1 is the button.
Seat 1: Kenny7 ($128 in chips)
Seat 2: Fred29113 ($95 in chips)
Seat 3: Smiffy44 ($102 in chips)
Seat 5: ariamvp ($79 in chips)
Seat 6: helenking ($60 in chips)
Seat 7: Ross15024 ($72.37 in chips)
Seat 8: Braley ($55.69 in chips)
Seat 9: e46lsb ($85.75 in chips)
Seat 10: Montyh ($105.25 in chips)
Fred29113: posts small blind $0.50
Smiffy44: posts big blind $1
helenking: posts big blind $1
----- HOLE CARDS -----
dealt to Smiffy44 [Kd Kh]
ariamvp: calls $1
helenking: checks
Ross15024: folds
Braley: calls $1
e46lsb: folds
Montyh: folds
Kenny7: folds
Fred29113: calls $0.50
Smiffy44: raises to $7
ariamvp: folds
helenking: calls $6
Braley: folds
Fred29113: folds
----- FLOP ----- [6h Jd Ts]
Smiffy44: checks
helenking: checks
----- TURN ----- [6h Jd Ts][9s]
Smiffy44: bets $9
helenking: raises to $53 and is all-in
Smiffy44: calls $44
----- RIVER ----- [6h Jd Ts 9s][Jh]
----- SHOW DOWN -----
helenking: shows [7c 8d] (A Straight, Jack high)
Smiffy44: shows [Kd Kh] (Two Pairs, Kings and Jacks, Ten high)
helenking collected $120 from Main pot
----- SUMMARY -----
Total pot $123 Main pot $120 Rake $3
Board [6h Jd Ts 9s Jh]
Seat 1: Kenny7 (button) folded before Flop (didn't bet)
Seat 2: Fred29113 (small blind) folded before Flop (didn't bet)
Seat 3: Smiffy44 (big blind) lost
Seat 5: ariamvp folded before Flop (didn't bet)
Seat 6: helenking (big blind) showed [7c 8d] and won ($120) with A Straight, Jack high
Seat 7: Ross15024 folded before Flop (didn't bet)
Seat 8: Braley folded before Flop (didn't bet)
Seat 9: e46lsb folded before Flop (didn't bet)
Seat 10: Montyh folded before Flop (didn't bet)