Chill...
Look I'm just going to help you completely here. You can take 500 tabs of lsd and maybe have some sort of disorder. In particular anxiety.
I'm experienced. For a week I SWORE that I couldnt think regularly. "I fucked myself up" "omg I'm schizophrenic" and I even started creating a schizophrenic persona (laughable to me now) I had no idea how/what schizophrenia really is. If I had this disease 1) I wouldn't be able to function well enough to even sign up and fill out a forum on this website. 2) As badly as my/your mind was/is wanting to to go crazy it's literally IMPOSSIBLE. Take a deep breath because here is what is going on.
You have created an anxiety monster out of this bad trip. Even a good trip (people worry they won't be able to see the beauty of life like they did again)... But this anxiety is SWEARING and completely convincing you that you are going crazy.. You're degenerating.. I cant distinguish reality from normal.. I want this to stop.. I'll never be normal.. Bla bla bla... This is ALL and really listen when I say this. This is ALL anxiety. You're fine.
What needs to happen now is you need to tell these thoughts that pop up "hmm, that's an interesting thought" almost like downplaying and ignoring a bully (the best way to defeat them). You'll laugh at yourself later I swear... But you need to see a therapist to help yourself battle this anxiety monster (he's MEAN and MORBID!) but it's defeatable and won't last any longer than a month if you stay clean, eat well, see a therapist, and get MEDICATION for the time being. The meds are temporary and needed because this is a chemical balance thing. Just like depression. I was sketched out by medications too. I didn't want to be able to be okay on meds, but "not" okay when I was off... This isn't the case here. This will help you have solid days and weaken your monster until your eyes and mind are clear again. Training wheels. Just trust me. You aren't schiz...You're having full blown anxiety. Again, you don't know what schizophrenia really is. You're probably scared to sleep/be alone too and you don't trust yourself.. Suicide comes to mind during these terrible thoughts. That's anxiety winning. That's probably why Kurt Cobain killed himself... Except his anxiety was a different beast...
Go to a doctor and grab an anti-anxiety medication and see a therapist. Therapy being the ultimate medication. Believe that. Since this is a mini/baby ptsd. It's really not even that. You're going to feel like you can run through a brick wall after this. You're battling your ultimate fear here. Losing sanity. It scared me too. But the fact that you feel like you're losing sanity shows that you aren't... Lol. laugh about this with yourself in a friendly manner.
Again, staying street drug free, exercise, eat well, therapy, breathing, "hmm, that's an interesting thought"/downplay and taking the thought and putting it into perspective, medication (temporarily), and TIME. Be easy on yourself and just... relax now. Breathe. You're okay! This is why you want to stay away from drugs. This is it. The anxiety. It makes you weak mentally on a deep level.
Anyways I just wanted to shine a light on what's going on. Seems like no one has a sound answer and confusion + fear is being spread foolishly on sights like these.
Anyways, take my advice and you'll be fine. Peace.