I'm a 20 year old college student and I've only used psychedelics a couple of times (THC/CBD capsules twice, LSD once along with microdosing a few times). My primary motivation for writing this is so that it serves as a kind of benchmark for my recovery and hopefully be a little cathartic.
Anyway, my first CBD experience was back in January and I experienced no negative consequences. Following that, I took 100ug of LSD in February (two days before an exam, so I didn't have the best set or setting) and while my trip wasn't horrifying or traumatizing, I had read about the possibility of psychosis and HPPD beforehand so I was somewhat worried. Luckily, I didn't experience any symptoms and I was able to complete my school term feeling quite normal. In late April, after exams, my roommate/best friend and I decided to take a THC capsule. They were way too strong and I ended up having an acid flashback with uncontrollable racing thoughts. The next day, my friend and I both felt DP/DR, which lasted for a few days. However, I think that experience caused some latent anxiety to surface, and I started to constantly "check" my thoughts to try to convince myself I was back to normal. This, of course, had the opposite effect, and only made my anxiety worse. I've managed to stop this habit, but it's been replaced with worry about my vision and other various symptoms.
I currently have mild visual snow, like a pulsating texture over everything I see, especially flat surfaces. I've also started noticing flashes of light that dart across my field of vision. Rationally, I know that these are probably quite normal and that I'm only noticing them because I'm worried about having them. Right now I'm just waiting to fly back home for the summer, so I expect they'll disappear once I have other things to focus on. I've decided to completely abstain from all drugs (caffeine and alcohol included) and take the next few months to readjust.
Everyone with this condition has my full respect - I know my symptoms are quite mild and yet it's one of the most frustrating things I've experienced. Thanks for reading.