My efforts at 10NL are still resulting in disaster. After just 500 hands I'm down almost three buy-ins.
It's not the end of the world by any means, but I can sense that it's becoming a problem mentally.

This hand came at the end of a session where I had clawed back some early losses. I finally hit a good hand and as you'll see it went pear shaped.

Party Poker No-Limit Hold'em, $ Hero (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP1 ($30.10)
MP2 ($15.43)
CO ($7.15)
Button ($14.80)
SB ($8.89)
Hero ($10.70)
UTG ($11.67)
UTG+1 ($0)

Preflop: Hero is BB with 7, 7. SB posts a blind of $0.05.
2 folds, MP2 calls $0.10, 2 folds, SB (poster) completes, Hero checks.

Flop: ($0.30) 7, 8, K (4 players)
SB checks, Hero checks, MP2 bets $0.35, SB folds, Hero calls $0.35.

Should I raise here? If he has got a king I don't want him to put me on trips or TPTK if he's TPWK.
There doesn't seem to be much risk here with slowplaying. I'm 98% to win at this point but how much will he be willing to part with now?

Turn: ($1) K (3 players)
Hero checks, MP2 bets $0.88, Hero calls $0.88.

That seems like a money card. If we eliminate KK (hardly likeky given pf action) then unless it's K7 or K8 I'm good.
Is now the time to raise? He's probably hit trips now; can I get it all in straight away?
He's 15% to win, a significant improvement. Should I make him pay to see the river, or take the risk and get one more big bet off him before I hit him with a raise?

River: ($2.76) 8 (3 players)
Hero checks, MP2 bets $1.94, Hero calls $1.94.

And of course it's horrid to hit the 8. But better than a 2 (when I would have got de-stacked).
Why did I call here? I have no excuse. I was just so gutted I think I just called out of some desperate hope he was bluffing.
Real donk stuff.

Final Pot: $6.64
Hero has 7d 7s (full house, sevens full of kings).
UTG+1 doesn't show.
MP2 has Kh 2h (full house, kings full of eights).
Outcome: MP2 wins $6.64.