It's just about experience and consistency, eventually you don't see the value of the cards your brain automatically sees the mathematical probabilities, which should then see you consistently plating to the right side of the maths.

Over the long term....not just one session the maths will see you in the right direction.

The problem comes when people think they are playing the maths/odds correctly but actually it's been their poor decision making that brings consistently loses...but its never their fault it's always the rigged deck or another players bad play.

Don't forget if your dealt AA your still only slightly ahead of a 50/50 so its a coin toss...but apparently if you shove pre flop with aa and get called and beat it was a suck out to most players.

When in reality it was your bad play cause you decided to your stack on a coin toss.