Too agressive heads up?

I was heads up in a $10 sitNGo and by the time this hand came up we had been sparring, bluffing and overbetting eachother for a while. I couldn't get a worthy hand. So, I played the hand below and figured I had some outs and bet all-in hoping he would fold or I would catch a flush or another pair or possibly a straight (if I was lucky). I figured he was trying to steal the blinds again like every hand. Let me know if I'm dumb (for playing the hand like this):

300/600 TourneyTexasHTGameTable (NL) (Tournament 9427883) - Thu Feb 10 00:47:52 EST 2005
Table Table 11266 (Real Money) -- Seat 6 is the button
Total number of players : 2
Seat 1: ME (4196)
Seat 6: woody627 (3804)
woody627 posts small blind (150)
ME posts big blind (300)
** Dealing down cards **
Dealt to ME [ Qd, 8d ]
woody627 raises (450) to 600
ME calls (300)
** Dealing Flop ** : [ 6d, 8s, Td ]
ME bets (3596)
ME is all-In.
woody627 calls (3204)
woody627 is all-In.
** Dealing Turn ** : [ 5s ]
** Dealing River ** : [ Jh ]
Creating Main Pot with $7608 with woody627
Creating Side Pot 1 with $392 with ME
** Summary **
Main Pot: 7608 | Side Pot 1: 392
Board: [ 6d 8s Td 5s Jh ]
ME balance 392, bet 4196, collected 392, lost -3804 [ Qd 8d ] [ a pair of eights -- Qd,Jh,Td,8d,8s ]
woody627 balance 7608, bet 3804, collected 7608, net +3804 [ Th Ts ] [ three of a kind, tens -- Jh,Th,Ts,Td,8s ]

Bad timing but not necessarily a bad play. If the heads up play was as aggressive as you suggest with lots of over-betting and bluffing, you're basically looking for any solid top pair or even middle pair hand to try to hurt him with.

You didnt play it wrong. In heads up the correct way to play is aggressive. I am just suprised he didnt reraise you preflop.

When you hit middle pair going all-in might have been a little risky. Start off with a pot size bet if you get re-raised that should automatically say to yourself my pair of 8s are no good.

He had outplayed me the last 5/6 hands and was raking in the blinds due to my poor hands. I wish he did raise higher, because I would have folded. I figured I would take a flop with Q8s to see if he is bluffing and I can get a flush or something. It thought it was worth the investment at the time. I guess he outplayed me on the last 6/7 hands.