yeah, as you smoke more your high diminishes in a way, cause tolerance builds up. And what is there to be paranoid about, if you think something will get you, it will get you 3x as hard when your high. And as for depersonalization, smoke with people, they will keep you in your head, when you are left to think your mind drifts, and in your high state dont realize it, but have become rather self aware of yourself. when other people are there, you are made to focus on conversation, or activity, stimulating regions of your brain that distract you from that which concerns you. a small group of token friends is what you need, 2-4 people all chilling and smoking is a great way to relax a day away.

oh, and as for paranoia, ive only been paranoid a handful of times in the past year, and most of them revolve being at work high, i didnt realize how high i was until i got to work and realized my eyes were squinty and bloodshot, so i said something about allergies, and the other times were when i was forced to be around adults who didnt know i was high, and was trying to avoid eye contact, because that would have been a dead giveaway. Just dont think about it, your making it worse. If your gonna be high, why worry, if you can't afford to be high at the moment, you should not have smoked in the first place, and if anyone wants to create a scene, tell them that it is their problem that they have a problem with you being high.