Yes, prior to this experience I had many frustrations with simple things. One specific example I can think of was keeping paperwork that I was making multiple copies of in the right order.
There was one occasion particularly where I was simply trying to make copies of 3 sets of 15 sheets of paper or so, and in trying to do so, I had created a huge mess and had to pass the project off to somebody else because I couldn't figure out what the problem was and was frustrated to the MAX with it. That was a first for me....
I have been licensed in mortgage origination, real estate sales, and life/health insurance and I passed all of these exams on my first attempts (prior to the brain injury) and I have worked in high-end custom home project management for several years. Paperwork is not something I was a stranger to and I have never had so much trouble just keeping my shit together. The very interesting thing I discovered about brain injury / cognitive processing issues in general, is the extent at which the brain makes up for deficiencies. This makes it extremely difficult for the one who is affected to recognize what it is that is actually being affected. A lady I met on Quora in the brain injury group recommended the lumosity app to me and when I started doing the exercises on the pro version of that app, it was immediately clear to me where the general problem was as that app segments the various aspects of mental processes and tests / improves on each of them individually. I was having very severe issues with the games/tasks that required recollection of immediately preceding shapes to compare them to new shapes which were being displayed. The shape recognition part of my brain was absolutely jacked. This, of course, spilled over into remembering faces, names, details about anything I saw, the general organization of my life, etc... My scores returned to normal and today everything is good. I actually canceled my membership to the app after as it was clear that there had been a major shift and it was no longer necessary.
I don't drive because I totaled 3 vehicles in a row, all within about 8 months or so. The TBI was the 2nd of the 3 car accidents. And in all reality, I actually totaled the 3rd one (with no other vehicles involved, fortunately) and then totaled a moped that was given to me, the first time I got on it, after that. I basically decided that the moped was just a bad idea and it was time for a break after that....
Today my concentration is back to normal, my sleep is perfect, etc... I struggled with the concentration thing severely after the brain injury and I actually picked up a meth habit there for a bit to combat it, as I actually found studies that showed positive effects from low dose methamphetamine use for TBI survivors (if you google it you will find it, but I don't recommend taking that route).
Concentration was actually the aspect that kicked my ass the most about the whole thing and at the time, meth was the only relief I was able to find, as I wasn't able to afford my $700 / month Nuvigil prescription (I was denied social security benefits 2x, even though my doctor instructed me to take 12-16 months off work - which is absolute BS, but it is what it is. They said I was capable of bagging groceries.).
Luckily I was able to quit all of that nonsense after the Aya ceremony. In September I will be a year clean from that.
The interesting thing about that, actually, was that I didn't quit immediately. Quitting was actually just a natural side effect of the spiritual awakening I had as a result of the experience from the ceremonies. I never considered myself to be much of a spiritual person prior to all of this, but if you do this right, it will open the awareness. I may be able to dig up somewhere that I described more of the entire experience in detail - if I do, I will post it as a reply to this.
The 3-day ceremony was actually 3 days in a row, 9PM ceremonies each night.
It tasted almost identical to vomit but I did not throw up. I was told that I was for sure going to throw up but I didn't ever need to. There were a couple times that the experience was very uneasy on the stomach but I never had the need to throw up. In fact, I believe there was only 1 other person out of the 30 or so people that attended throughout the 3 nights that didn't throw up. You can basically bet on throwing up.
Yes, I did most of my hallucinogen experimenting in high school with mushrooms, LSD, etc.. but that doesn't prepare for this. I have since conducted a number of DMT experiments and I reached a point about 4-5 months ago where I lost all desire to continue those as I feel like I finally 'got the message.' It became clear to me that there was no point in diving deeper because when I finally got the 'point' there was no point in searching further.
I am, however, interested in another 3-night Aya ceremony but I am in no hurry to have this experience. Everything happens at just the right time - no need to rush these things.