nicotine caffeine and alcohol after dpdr

got weed induced dpdr from a joint (way too much way too quickly) back at the start of january of this year, had dp for a week which went away then after a couple days of me thinking i was recovered dr started setting in. kept getting intrusive existential thoughts that were making me depressed and felt like i was living in a simulation for all of february until a few days ago where things slowly starting to feel a lot better - not 100% yet,but i feel hopeful about things. I quit everything after the original incident and am never going to smoke weed again but wondering if it would be safe to go back to alcohol nicotine and caffeine bc i need something to get through the week 😭