I hated it when people told me to relax because stress prevented my conceiving. If anything it just made me angrier...
I honestly doubt that anger (even rage) is the sole cause for failing IVF. I hope your anger subsided and that the transfer was successful and that by now you have nice and duplicating bHCG levels...
If not - don't dwell on this. It happened. Chances are you were choke full stuffed with hormones and anxiety as it is. Yeah, it's better to to be relaxed. Things don't always go as we planned (which I'm sure you agree with :-P )
Best of luck to you!