Stuck in a loop of wanting to / getting high every night/day.

As the title says, this has been going on for several months, but just about now i’m really noticing it. I’m a 21 zo male from Easter Europe.

Here’s the situation, for an example I will order a drug online (I do mostly research chemicals) and use it for a few evenings. Non of my drug use except smoking weed is social and I always do it alone in my flat. After a few days of using said drugs I will have a reason (bad sleep, hangover, unproductivness etc.) to throw it away. The thing is, I still have a strong urge to get high on ANYTHING every night. I’m prescribed Wellbutrin and even tried snorting it (heard it can get you high). I even started drinking even though I never socially drink.

I don’t understand what is happening. During the day I have no wants or needs to do any drugs or drink but when the evening comes and all of my work for that day is done the urges kick in, like I want ANYTHING that will get me intoxicated, good or bad. Recently it has mostly been synthetic cannabinoids and dissociatives. Left stimulants for good since having psychotic episodes. Any help, explanations or just clarifications would be helpful. Thank you.