My Biggest Loss Ever

Yesterday I lost more money playing poker than I ever have before in one day. At one point early in the session I was down 26k. I scrapped all the way back to -6k before finishing on a downswing and wound up down about 22k. I was massively unlucky and my cards were incredibly cold, but I also misplayed some hands very badly. During my fight back I thought I played about as well as I ever have, but then I screwed up a hand very badly:

Seat 7 is the button
Seat 1: ReadMyAvatar ( $6173)
Seat 8: APotIsAPot ( $8090.41)
Seat 10: svizec24 ( $4450)
APotIsAPot posts small blind (25)
dushu posts big blind (50)
** Dealing down cards **
Dealt to APotIsAPot [ Ah, Ad ]
svizec24 calls (50)
ReadMyAvatar raises (200) to 200
paranoia43 folds.
DorsVenabili folds.
fredcharles1 folds.
FUNPOKER1222 folds.
APotIsAPot raises (700) to 725
dushu folds.
svizec24 calls (675)
ReadMyAvatar calls (525)
** Dealing Flop ** : [ Js, 4d, 7h ]
APotIsAPot bets (1389)
svizec24 calls (1389)
ReadMyAvatar calls (1389)
** Dealing Turn ** : [ 6h ]
APotIsAPot checks.
svizec24 bets (2336)
svizec24 is all-In.
ReadMyAvatar raises (4059) to 4059
ReadMyAvatar is all-In.
APotIsAPot: christ
APotIsAPot: AA
APotIsAPot calls (4059)
** Dealing River ** : [ 8h ]
Creating Main Pot with $13397 with svizec24
Creating Side Pot 1 with $3446 with ReadMyAvatar
** Summary ** Main Pot: $13397 Side Pot 1: $3446 Rake: $3 Board: [ Js 4d 7h 6h 8h ] ReadMyAvatar balance $16843, bet $6173, collected $16843, net +$10670 [ 7c 7d ] [ three of a kind, sevens -- Js,8h,7c,7d,7h ]
APotIsAPot balance $1917.41, lost $6173 [ Ah Ad ] [ a pair of aces -- Ah,Ad,Js,8h,7h ]
svizec24 balance $0, lost $4450 [ Kh Ks ] [ a pair of kings -- Kh,Ks,Js,8h,7h ]

I knew exactly what was going on here and I didn't do the right thing. Whether that was because I hadn't had many hands all day, because I had gotten into a penis-measuring contest with ReadMyAvatar, because I had been playing for a long time and was fatigued, or because I have been playing more tournaments than cash games lately (where overpairs are unfoldable), I'm not sure. The fact is this should have been a casual laydown, and making mistakes like this is completely unforgivable.

___

WSOP Main Event: -10,000
25-50 Wednesday afternoon: 2.5 hrs, +7192
25-50 Thursday: 7.5 hrs, -21,921

Year to date: 149,133