Took 0.2g of dried amazonian cubensis and it was very bad!

I have been suffering from social anxiety, GAD, agoraphobia, depression for ages. On friday i took my first microdose of 0,2 g of Amazonian cubensis ever. I put a dried cap on a scale, weighed out 0,2 and then i chewed it up... it was horrible! I probably accidentally tripped a little , everything was very INTENSE and I felt very, very strange and very uncomfortable, unpleasant. It also gave me more anxiety and finally i felt depressed (probably more than usual), i wished it was all over.

I really do not understand it. I only took exactly 0,21 and after i have read a lot of positive reports on shrooms microdosing, I had so much expectations and i believed that this is the right way for me, to treating my lifelong struggle with terrible anxiety, depression... but I only got slapped :(

Could it be that I am very sensitive to shrooms ? or the Amazonian are some very potent species of mushrooms ? Or maybe I rather should have ground them up than chewed up a cap that could be more potent than for example other parts of shrooms ? I got them from a reliable vendor, they look like this : http://postimg.org/image/qmaybisvl/

p.s English is not my native language, sorry for mistakes