Would die without coffee though. So it works really good?

You have to macrodose for therapeutic effects.

See also:

A walk in nature is better than microdosing - https://news.ycombinator.com/item?id=27435972

LSD microdosing does not appear to improve mood or cognitive ability: study - https://news.ycombinator.com/item?id=31632680

Microdosing study shows the placebo effect of taking psychelics - https://news.ycombinator.com/item?id=26324219