I tried to convert this at weaktight but still had the problem of not being able to post URLs until I have 10 posts

Villian in this hand is a TAG regular running 18/15/4 over 200 hands with 7.6% 3BET. We didn't have previous history and I hadn't seem him get out of line at all.

$25 USD NL
Seat 6 is the button
Total number of players : 4
Seat 6: Lividuma ( $26.25 USD )
Seat 5: Hero ( $43.87 USD )
Seat 3: markemarke1 ( $53.51 USD )
Seat 4: samkhosla ( $11.83 USD )
markemarke1 posts small blind [$0.10 USD].
samkhosla posts big blind [$0.25 USD].
** Dealing down cards **
Dealt to Hero [ Ks Ah ]
Hero raises [$1 USD]
Lividuma folds
markemarke1 raises [$3.40 USD]
samkhosla folds
Hero calls [$2.50 USD]
** Dealing Flop ** [ 6h, Qc, Kh ] [POT $7.25]
markemarke1 bets [$4.50 USD]
Hero calls [$4.50 USD]
** Dealing Turn ** [ 2s ] [POT $16.25]
markemarke1 bets [$11 USD]
Hero ?? ($35.87 behind)

Should I have 4BET with my position and being 175BB deep? As played should I raise the flop? As played should I fold the turn? I feel like I played this hand badly and my only option is to fold because unless he's bluffing I'm not beating anything. I put him on QQ+,AK when he bets the turn but maybe a flop raise would be appropriate to figure where I am at?