I ask this because every time i've done MDMA from the darknet it's always felt off, not sure if this is tolerance (because I have abused it) or it's fake - the MDMA that I got was not stimulating or euphoric at all - I felt empathy though.
Even the MDMA that's pinned on market listings I've found to be quite lame compared to the first time I did MDMA, the magic just hasn't been there and I've always felt this was mild compared to my first roll. I've bought many batches of MDMA and it just hasn't worked - biggest waste of money with DNM's so far.
Other drugs have been just fine (i've done 2CB, DOB, Speed, Weed, GHB, IPH) - so disappointing.
The drugs are fine, it is you that is the problem.