I am the best NL player at.....

[AZK]

paying off like a slot machine. I mean I really am better than any of you at it. Jesus. Do you get away from these?

2/4

I limp 33, someone makes it 16 to go, 1 caller, I call.

Flop K73 2 clubs

checked around

Turn J

I lead for 32, raiser called.

River 7

I bet 40, villain minraises. I'm about 70% sure he has KK and I call anyway.

Hand 2:

Villain has habitually been raising my blind, it's pissing me off and he is solid, 5/10, he makes it 30 to go on the button, I call in the sb with AJo, BB calls.

Flop: J76 twotone

I check, BB checks, villain bets 30, I call, BB drops

Turn J

I check/call 50

River 4 (rainbow)

I bet 100, he makes it 300, I call like a fish.

What is a better river line? Check/call? If he missed or just has a pair he will not bet this river, if he has a better hand he raises, so what should i do? The only hand I see just calling my river bet would be KJ-JT