Coolered Again with Aces

Playing in the $50K Tourny at pokerdotcom and for the first time playing these things, I have a good chip count with about 75 players to go before the money and it could look like that I would make more than the minimal $5... But then, this debacle of a hand came about:

Antes Posted
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heels88 Posted Small Blind 300
gmann19 Posted Big Blind 600
Dealing Cards
You Were Dealt (As, Ah)
Stormswift Folds
DamRiver Raised to 2,000
IAMADONK Folds
raischst Folds
ant83on Folds
shuperstar Folds
Lights0ut All In for 6,690
guruchu Folds
heels88 Folds
gmann19 Folds
DamRiver Calls 4,690
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Lights0ut has (Kh, Ks)
DamRiver has (As, Ah)
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Dealing Flop (2s,Qs,Kd)
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Dealing Turn (2h)
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Dealing River (Td)
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Lights0ut Wins 14,780 from pot 1 with : Full House, Kings over Twos


What can I do to change this unholy luck? I get all my money in preflop and he has 2 outs. I can't tell you how many times I've lost with A-A to K-K (or even junk). I would go out 54 places before the money and a great opportunity for a possibly $5K that I fought so hard for was clogged into the toilet (analogy for fighting hard) and now down the drain...