I think you are either a good candidate to become a monk, or you have not yet played the micro and freeroll games online enough to encounter some of these people and the way they play.
Is it me or is there a new trend of never folding a pair, no matter how small it is or how big the bets are? It doesn't matter how crazy the board gets on 4th and 5th street. It seems that these people are unbluffable, and are always looking to donk people with turned and rivered trips and two pairs. They see any draw, back door and gut shot, as the nuts, and they love going to show down with a pair of twos and a seven kicker.
I think if you play long enough, getting stressed and upset is inevitable. It is all a matter of how well you can cope with it over the long term, when back luck and bad players seem to be flooding your way; if you can find your own way to deal with the reality of annoying and obnoxiously bad players and their god awful play, you will be a winner in the long run.