Wow, sounds like quite a bumpy entry into the DMT world.

One thing stands out for me.

"I found myself alienating most of my friends who weren't really keen on pushing the boundaries of their perception."

Are you sure that's wise? I tend to think (or hope) that a beneficial experience should ultimately connect you to your own life, not turn you away from it. It can be tempting to ramble on about the experience even to people who aren't interested in it, simply because it's so awe-inspiring, but those who don't care might hear it as crazy talk. It doesn't mean they're not your friends, just that they don't share that particular thing with you.