The main risks of doing 5-MeO-DMT alone are: 1 - you can vomit and choke on your own vomit while being completely out of your body and without any consciousnes

The main risks of doing 5-MeO-DMT alone are: 1 - you can vomit and choke on your own vomit while being completely out of your body and without any consciousness of the outside world or bodily control 2 - some people move around a lot on it, while being effectively unconscious of the world around them... this can cause them to hit their head or otherwise injure themselves So it's much safer to have someone watching over you.. someone who is trained to put you in to the recovery position if you start vomiting, and to otherwise keep you physically safe.