Your MDMA was fake. DXM-->garbage. Fly agaric-->not intended for human consumption. Hawaiin Baby Woodrose-->famously over hyped, shitty substitute for LSD. The Klonopin should have made you slightly less awake; benzodiazepines' effects, however, have been known to be missed by the novice user. And none of them, not even Rohypnol, particularly give any euphoria, unless you get euphoria from having your anxiety taken care of for a couple o' hours. Weed-->you said it felt "disassotiative," so you DID get high from it. Synthetic marijuana-->the only kind I would do in today's market are pure powdered JWH-210 or JWH-073. Unknown newly synthesized synthetic cannabinoid blends are to be avoided at all costs. It's not like it was when K2 and Spice were introduced, neither of which were overly euphoric.
I've done a smorgasbord of drugs in the last twenty years. The best ones are caffeine, propylhexedrine, amphetamine, methamphetamine, MDA/MDE/MDMA, a-PVP, good cocaine, good kind bud, shrooms, LSD, DMT, 4-OH-MiPT (is good if you take a heroic dose like I did), ketamine, MXE, and maybe opiates. Do any one of these, and your time will not have been wasted.
Oh yeah, MET and propofol were good too, but as Michael Jackson could probably tell you now, propofol should never be used outside a medical setting, with proper resuscitative equipment on standby. It is estimated that 1/3rd of recreational propofol users (usually doctors or nurses) die from it.