I agree with everything you said man. Not long ago had very similar situation going on with my older brother... long story short he got in big trouble with psy drugs that he combined with hardcore benzos just for the sake of curiosity and science (he is psychiatrist), at least that's what he said.
It was rough and stressful time, during that short period he made couple of accidents, crashed the car twice and almost killed a teenage boy... My point is no human being is capable of managing hard psychedelic drug usage, they might feel in control but their actions say otherwise.
Connor is known for doing dubious things for views but his current situation is definitely out of control, he need to be put under therapy ASAP