Have you tried little rips of it and felt it out before taking the whole plunge?
I've been looking into make a little time machine depending on how my first experience goes. My ego thinks it'd be cool to have a small portable thing to take around festivals / shows, but that could very well change after the first/maybe last breakthrough I get.
I can vouch for that angry feeling, but one thing I keep trying to remember is that those are feelings that are programmed within us and not really real at the existential levels that these types of things take us to.
My first experiences were just doing the sandwich, and there was no real hesitation as I was on the end tail of a 2cb trip, and I had been saving DiMiTri for the end of the night with my buddy. We sat back and took some rips and it felt like I was being pressed up against a bug zapper (not a bad feeling, not particularly good, just was what it was!) I did this like 4 other times and had pretty much the same visuals/feeling each time which I thought was very interesting.
I'm going to my buddies here in like 30, we're going to do a quick little 30 minute meditation (we practice the Vipassana technique, I recommend it for general purifying of the mind, but it helps in all aspects of my life in my experience with it, especially tripping!) I have some guayusa green tea, the amazonian tribes say it adds a blue hue to their ayahuasca visions but I'm really just going to drink it before because it gets me kind of pumped up and ready for the experience (unfortunately my setting didn't allow me to follow up this feeling.)
I'll be back here in a couple hours with either me saying I goosed out and didn't do it, just did a little, or went full mental
Much love Asher!