Your are very young and you will be fine man, just dont overthink about it too much, it sounds to me like you are exacerbating your symptoms with the anxiety, tahts very common, i think you may have a mild case of HPPD so, stop drug use for a while, do excercise and drink watter, have healthy food and you will have a great chance that it fades away completely, just focus on other things, and dont think too much about the visuals, acept it is like reality is going to look like for a while, i know it feels strange and mmaybe creepy but it will pass away if you take a break from substances and stimulants, remember not to think thing like "im gonna be like this forever, ohh gosh" just keep cool and you will be fine bro, if you are lucky you will be able to smoke pot ocasionally again and youll recover to your normal life again, i hope for you the best, and i wish you recover completely that im sure you will, and if you accept an advice just stop the psychedelics, remeber if you pick up the message hang the phone! Hope !!!