My opponent is kinda loose, tricky, difficult and aggressive.

How's my line? Standard? Too big of FtoP mistake for this depth?

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) FTR converter on zerodivide.cx

BB ($36.55)
Fnord ($100)
UTG+1 ($109.70)
MP1 ($55.10)
MP2 ($110.95)
MP3 ($392.65)
CO ($108.80)
Button ($7)
SB ($27.60)

Preflop: Fnord is UTG with K, K.
Fnord raises to $3, 1 fold, MP1 calls $3, 1 fold, MP3 calls $3, 4 folds.

Flop: ($10.50) 7, Q, 5 (3 players)
Fnord bets $8, MP1 folds, MP3 calls $8.

Turn: ($26.50) 9 (2 players)
Fnord checks, MP3 bets $15, Fnord raises to $89...