how can i have a better experience with d8?

i tried d8 for the first time last night with a disposable (it was also my first time with a disposable — with d9 i normally use edibles or share a blunt with friends). i wasn’t really sure what i was getting, but i had read online that d8 was a lot less potent and probably wouldn’t get me high. i grabbed a disposable (rare 2mg) at the recommendation of the smoke shop employee and tried it only to have the worst high of my life. derealization, shaking, unable to maintain my train of thought, couch locked — this lasted from about 9:15pm to around 3am. i was still buzzed til about 6 or 7 in the morning. i spent $40, so i don’t want to waste it. how can i have a better high with this?