“Heroic“ doses of tryptamines

[nameiwillforget]

After careful consideration I decided I have to do some work on myself and that I want to push my own boundries by taking a “heroic“ dose (although I don't like the term) of a psychedelic. I did this three times with lsd, but I noticed that lsd has a tendency to kick me into thought loops and general “psychotic“ states, so I want to try something else, but mushrooms make me too tired and also seem to reduce the blood flow to the brain, which is not exactly bad, but also not necessarily what I am looking for. I am wary of high doses of phenethylamines, so I want to try a high dose of some tryptamine, and I would like to know if someone had any experience with a tryptamine at a “heroic“ dose (comparable to 1-2 mg of lsd) that they found to be safe and have as low a body load as possible.