It’s also a matter of how comfortable you are smoking and how much you smoke. A puff or two will give you a nice buzz and not rape your brain with paranoia.
Once you get used to being buzzed, just like alcohol, it’s doesn’t hit you as hard. Not really tolerance, just that your body isn’t freaking out because it doesn’t know what’s going on.
Also, some people just don’t have the type of psyche that can deal with psychedelics. I’m one of them. My head always goes to dark shitty places when I open up the windows with stuff like that.
Small doses I’m fine, otherwise it’s a mental Stephen King horror show until it wears off. Other people can do bong hits with impunity .