I think raise on the flop, I doubt he is playing A6/K6 He potentially has AA or KK but you have a blocker to the KK,I strongly doubt he has a 6 in this spot on a 3x bb raise pre.You block QQ,AQ and have a decent kicker so i think we raise on the flop to 8.2k -8.6k.

Turn as played is a fold, don't think he ever does this without having a flush.

You still have 30BB so nothing to worry about, just keep grinding and the focus up.

Good luck on the felt.

I think you need to call the turn. Flop bet doesnt narow his range. On such a board vilain could be c-betting with 100% of his range. So its still as wide as pre flop. Now, if you have fot instance the flush on the turn, what would be your play? You have a potsize bet left. Are shoving AI with the risk of getting a fold? You then want to build the pot.

More likelyhe had a good A flushdraw. With him shoving he had 2 options to win the pot. 1. You fold. 2. You call but he gets an A or a flush on the river. A= 3 outs, flush 9 outs. = 24% of the time he gets there on the river.
Your on the river, your range is wide. No good Ax hands and high pairs are in your range. Your would have reraised them. So your folding a high percentage of the time. Lets say 60 - 70 % of the time? When You call 24% of the time he gets there. you get the picture :)