13 seconds!? That's incredible! :)

I would suggest saving that replay :D

Winning all the time is like you very well already know IMPOSSIBLE. But perhaps the reason you got so "demolished" today was the fact that the ladder system noticed that you were doing good and decided to get you matched up with tougher guys, that have happened to me before (when I was Gold and all suddenly got put up against Masters) - stood no chance at all XD but kept fighting anyways =)

And I also found this TL-page on ladder anxiety if that is what you suffer from
--> http://wiki.teamliquid.net/starcraft2/Dealing_with_anxiety 

Check it out and "Twist the towel really hard"!!!