+1: similar experience and same book recommendation.

I've had one high-dose psychedelic session in each of the last three years and while the experiences themselves were sometimes difficult, the positive changes are hard to overstate. They seem mild at first, but the unshakable sense of self-worth, of purpose, and of belonging in the universe have become such strong foundations for all the positivity that I build above them that at this point I don't know how much of my beautiful life to attribute to my luck in getting into psychedelics in the first place.*

* ...in the right way, of course. The drugs themselves are a neutral technology like any other, and must be used in the right way in order to be helpful rather than harmful or merely novel.