350 BB deep against a maniac/fish

[danswer5]

Playing against a bigtime fish, but he's a bigtime maniac too. Prior to this hand, there are certainly a couple hands of note that deserve consideration.

One hand, i raise QQ and get 3bet from SB. I call flop and turn and raise river with 5 undercards, he instacalls my raise w/ k2o for bottom pair. BTW very next hand he's AI for 100bb w/ a6o and obv spikes his flush on river. Another hand I push AI on river w/ turned straight and he instacalls again w/ top pair. this one was the thrid time he'd tried to minbet flop, turn and river to stop me from raising and i just felt like he was getting tired of being pushed aroudn.

I also tried a semibluff on turn w/ ATd on 2 diamond board and he called down w/ AQo npnd. Pretty much, this guy is a station and I learned that bluffing in any form is just taking my money and wiping my ass with it. On to the hand: I haven't seen this type of aggression yet.

Btw, I 4bet like a fish. there's no excuse, i just thought he might 5bet small too bc that's what fish like doin', right? Please disregard pf, i know i played it really bad, i dunno, anyways on to the hand

NEW HAND

Seat 1: Fao_Lustra ($84.25)
Seat 2: Hero($374.41)
Seat 3: LeftyMcDog ($64.35)
Seat 4: caspe1spain ($64.50)
Seat 5: maizeandblue ($55.50)
Seat 6: Villian ($530.95)
caspe1spain: posts the small blind $0.50
maizeandblue: posts the big blind $1.00
--- DEALING POCKETS
hero is dealt [Ac,Ad]
villain: raises $1.00 to $2.00
Fao_Lustra: folds
hero: raises $4.50 to $6.50
LeftyMcDog: folds
caspe1spain: folds
maizeandblue: folds
villain: raises $4.50 to $11.00
hero: raises $4.50 to $15.50
villain: calls $4.50
--- DEALING FLOP [3c,7h,7c]
caspe1spain: has left the table
Portland has joined the table
villian: bets $32.50
hero:, it's your turn. You have 10 seconds to act
hero: calls $32.50
--- DEALING TURN [8s]
villian: it's your turn. You have 10 seconds to act
villian: it's your turn. You have 5 seconds to act
villian: goes all in $482.95

What's my action and what is your reasoning? Sorry if i haven't provdided enough reads. this guy is bad, but he hasn't shown this kinda crazy aggression yet. hopefully the prior hands will give some input as to what he's like.