How to not call when you are beat

[slimbob]

Hello guys!

I have a ridiculous but serious psychological problem. I played a year Limit and one table tournaments and played only ocasionally Nolimit. Since a week I play 0,5$/1$ Nolimit and have this problem:
I had the following situation 3 times now:
I have the nuts for example the nut straight. I throw in huge bets and one player calls me. This player gets his outs at the river and puts me all-in or make a huge bet with an obviously better hand the flush for example. My notes tell me that this player never bluffs and plays extremely tight so everything is against a call. But I call. He shows exactly the hand I thought he has. After this I swear to myself that I never ever will do this again. The next day the same situation shows up and make the same mistake. After this happened I swear to myself .... and so on and on.
The only explanation I have is that I played the whole time Limit and here you have to call the most time if a player bets at the river even you think that you are beat if the pot is big enough.

So I ask you guys what can I do to never do this again?

Quittung poker is not an option! [img]/images/graemlins/smile.gif[/img]

May be you made this mistake also and have a solution for me to stop this.
Thank you very much!

Best regards

slimbob