ayahuasca may not be as simple as it seems (For some it is, it took me 4 'dud' brews [3 of which were properly dosed and brewed] before my first experience) - the best advice i was given is to brew two doses that way you can re-dose as necessary (which it might not be - wait at least an hour)

:d tell me about it, this still happens to me daily

(seriously, is that even english?)

but it gets easier with time, trust me.