There is a few things why it didn't work. For one, you did 1 hit, that will do jack shit. To get the full effect of salvia, the best is take a nice, HUGE rip, hold it in for about 10sec. and take another rip, release, and try and take one more(if you can), and you will feel the effects.

Another is, maybe it wasn't really 20x, maybe it was just 5x, or just the leaf. The first time I did 5x I felt next to nothing. I bought some 10x about a month ago, and I have about 3 big rips from a small, wodden pipe I bought, and man......I am flying!! Fucked up.

So...try again.