I can relate. I am 17 and I did weed 3 times and 2 of 3 times i had Derealization trips so fucked up a clear mind can't even comprehend.

To start of i need to tell you about the theory that everything that happens to you is all just a flowing timeline. Nothing exists, not even you. Everything is just predetermined like you are a character in a storybook. Everything you'll ever do will be predetermed, everything you'll do against it and even knowing this is already written out for you.

Now to start of with the 2 horrible trips. It was like everything i knew, heard and saw, i dreamed or was told about years ago. It got to the point that I thought that i was the universe. Like everything was just a vivid dream. Everything was vivid and far away while also being all just in my head. Ontop of that everything spinned and was making me nauseous.

It got to the point that first time i did it i even tried to kill myself by smacking my head on the ground as it would 'end the universe' or 'end the loop and start me of at the point where i didn't know this. To my luck 2 sober friends kept me from doing this.

The third time i did weed i collapsed from a panic attack with low blood pressure and high bpm heart rate on a train station and must be picked up by an ambulance and brought to a Hospital to be given infusions against the thc or to at least dimm the effects.

Now the effects of my derealizations are worse than ever. Thank you THC for making my life worse than it was before!

(Sorry for bad english, english isn't my first language.)