I use to worry about whether I won or lost but now I worry more about whether I played the hand correctly. Is that a good thing? And for once I will not get replies with "you stack is too short"

This was about the 6th hand that villian had played so no read to speak of.

First, I believe I should have raised pf. After that I'm up for sugesstions

PokerStars No-Limit Hold'em, $0.05 BB (4 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Button ($3.99)
Hero (SB) ($9.10)
BB ($6.17)
UTG ($10.40)

Preflop: Hero is SB with Q, K
UTG calls $0.05, 1 fold, Hero calls $0.03, BB checks

Flop: ($0.15) 5, Q, 6 (3 players)
Hero bets $0.20, BB calls $0.20, 1 fold

Turn: ($0.55) 8 (2 players)
Hero bets $0.30, BB calls $0.30

River: ($1.15) 8 (2 players)
Hero bets $0.20, BB raises to $0.65, Hero calls $0.45

Total pot: $2.45 | Rake: $0.10