I can only beat myself

[DesertCat]

CAZ 20-40. Villian is laggy aggressive asian, can't figure out if he's decent post flop or not. He lost a pile of chips raising from early position with K9 vs KT, on KT9K turn. Slow played broadway straight with KQo vs. my AK until raising river.

On this hand I limp after a limper in EP with QsJs. Villian limps on button. Five of us see flop of AsTs7x. Checked to me, and I bet to build the pot size with my big draw. Freakin villain raises to knock out any callers. I call.

Turn Ks. I make a flush. Check, he bets, I raise, he three bets. I don't have my glasses so I check the board to make sure I'm not mistaking a club for a spade. About this time I realize I have a royal (yes I am that slow). I don't want to lose him since a four bet is an obvious flush so I call and check dark to see if I can get a check raise in on the river, hoping the board will pair or that he'll see me as weak and bet again.

I believe I butchered this hand on almost all streets. Lets go through it.

1) Should I three bet flop?
2) Should I four bet turn?
3) Should I have bet river?