Villain sat down an orbit or so ago (A lot of my posts seem to start this way for some reason...) and hasn't done anything noteworthy. Hero hasn't been at the table for much longer, although I took a dinner break and sat down at the same table again. V doesn't know this though.

V has $300, Hero also has $300. 1/2 NL.

V opens in EP for $7. I didn't read a lot of strength in his raise, mostly due to the sizing.

Hero 3-bets to $20 with A Q. This is pretty much the rock-bottom of my 3b range in this position. The table has been loose-passive and I thought a 3b here would take it down often enough against what I thought was probably a pot-sweetener. For some reason, three people call behind, and V calls as well. 5 ways to the flop. So much for plan A.

9 7 3 ($100)

V donk bets $40. Hero calls because I don't mind a player or two coming in the pot behind me.

One other V calls the $40. 3 players left.

Turn: 3 ($220)

V bets $35.

Hero raises to $135. V2 calls all-in for less (don't recall the amount now)

V calls $100.

River: J

V shoves all-in for ~$100. Hero snap calls (and loses to JJ, but whatever). More interested in comments about sizing.

I prob just shove turn, unless you have a read that AI would scare off V, otherwise looks fine, prob go to 25 on the initial 3-bet too.

Probably guessing V had J so I truly doubt Villian is folding to no matter what raise or bet with overpair and flush draw. Obviously a crappy run out.

I think I would have raised the flop $120 ish. Assuming he flats that $120 bet, I would shove turn.

The raise ott is too big. I'd keep it lower to ensure callers in the future. I think big raises scare players off here a big portion of the time. I'm purely looking at it from that perspective. Thx for calling this time though!

Hero stays at table because it's a great game.

(Flop flat is pretty standard)

Your 3b! sizing is too small, I'm going at least $25 to something like $28. Obviously it depends on table dynamic/room but usually such a small 3b! is going to be called by at least 3 opponents where ideally we want to get heads up or 3 way to the flop. Yeah, I think you raised a little bit too much on the turn; I'd go slightly less to like $110-120. You can still easily get stacks in by the river since V will have $125 behind with the pot being $440 and will most likely level himself into calling with most of his range once he calls the turn. I mean, he just needs to be good 18% of the time so he might look you up as light as K 9x. Pretty damn unlucky on the river, but that is poker.