Can use of a recreational drug cause psychological trauma to someone? i think i have this from a very frightening experience after trying a drug

Yes it can: It depends on the drug, the dose, and certainly your state of mind going into it. There can be extremely frightening experiences with hallucinogens like lsd, peyote, marijuana, psilocybin, etc -- also all stimulants like Cocaine and meth. Some of these are not really "party" drugs but are used that way -- when the experience can be extremely intense and personal. Sometimes flashbacks are ongoing.

Drug Use: Absolutely, if your trauma continues consult a clinical psychologist who treats drug abuse. You now know what not to do so you have learned an invaluable lesson. Take care.