Can I get my brain back to normal?

Context: I made the worst decision of my life by taking 2 grams of shrooms. Now I’ve never had any experience with psychedelics, so obviously I was nervous in the beginning. The trip I would say went from bad to good, once my brain got used to what was going on. I smoked weed after my trip and then went to bed, next day I felt tired and had a headache so I decided to lay down and once I woke up from my nap, I felt different. It was like I was disconnected from the people I know and love, this went on for about half a week before I went to the hospital cause I basically starved myself for two days. I got put on hydroxyzine (take as needed) and I didn’t like the way it made me feel, so I stopped taking it. My feelings were still the same and I felt depressed and had even more anxiety. Fast forward I’m now on sertraline (25 mg) and my symptoms are worse and I feel like I’m slowly losing my grip on reality. I feel depressed, I have anxiety, brain fog, dissociation, etc. I don’t know if I permanently altered my brain, but I just wanted to know if I stopped all drugs including prescription for a good month or so will my brain go back to normal?

Also, I’ve been having really uncomfortable hypnagogic hallucinations right before I go to bed, and I’ll wake up occasionally with really bad panic attacks, like I’ll be dreaming and then I’ll suddenly wake up with a head ache, shakey, heart racing, tingly sensation and sometimes mild hallucination.

Edit: ok so now I’ve been having really bad vivid dreams, I’ve been taking half of pill for like a good 4 days now, I’m trynna take half of a half all the way until I see a doctor. But about the dreams, they didn’t really bother me but now they are, I feel like when I wake up I remember strange details about my dream. It’s such an uncomfortable feeling cause I feel like it’s meshing with my reality. Like I’ll be chillin and I’ll remember the dream that I had and it’ll put me into a dissociative state. It’s really uncomfortable and I just hate this. Right now I feel like I’m going crazy and my dissociation is off the walls. Any advice?