Re analysing in poker. Do you HAVE to be in position?
Let's say I have 99 in the big blind. Let's say idildur in on the button in a cash game and he makes it 3x. Small blind folds. Against isildur range I feel I'm justified to 3 bet. So I do to 4x his raise. He 5 bets me 2.5x. Now isildur is known for being crazy. So I feel he can literally have any hand at all. However the thing is, with this thinking that means I'd happily 5 bet with q10 just presuming he's bluffing, because he's isildur. But he's representing a hand that against a normal player I'd have to fold my hand. Let's say also it's impossible to read him. Should I just fold? Or is it justified to 5 bet? Or is it even justified to call? I'm out position so does that take smooth calling out of the equation? Oh btw I don't have enough to make hitting a set justifiable. Btw that this exact same hand however I'm in his position, would I bet justified to call a 6 bet about 4x in position with 99?
And my main question is do I HAVE to have a read if some sort to make a move against a player who is obviously ultra aggressiv?