hey bud, after my first acid trip, which was also my first psychedelic experience ever, I started vomiting every morning, and all day, unless I was given chemo-patient anti-nausea meds, or if I smoked weed. I also had basically no appetite. Staying alive, let alone sane, was a constant battle. The docs say it was anxiety related and diagnosed generalized anxiety disorder, which I don't disagree with, I just wish I had help getting to the source and not just putting band aids on it. I wanted to off myself numerous times. I felt like god or whoever was punishing me for being a shitty person.
I also had just like what you describe, mood swings, loss of reality, the trip really opened my eyes to how the inner workings of my being/brain function and it was too much too handle. It took 3 years before I could wake up in the morning and NOT vomiting the rest of the day. 3 years before I could wake up and even eat a single waffle by the time the sun went down.
Point of this is, you seem like an open minded and also a tough cookie and while you may think you're permanently fucked just keep in mind that for many of us out there, a "trip" isnt just some fun experience where you see colors. It's a fucking mind-fuck skull fucking brain opening experience that words can't describe. If you are mentally developed enough that will fuck ANYONE up for a little bit of time.
Stay strong, and if you feel its getting very bad head to the doc and see if you can't get a couple xanax or klonopin a month to help ease your stress/anxiety. Peace and love from cousinskeeter.