oh - actually, i tried some salvia not long ago and i think it is a bit similar to acid - similar visuals and intense body feelings..
nah....
acid has never sent me hurtling into the abyss.....
you sound like you have a pretty good plan, but as long as your not going crazy with your first dose it shouldn't be that hard to not enjoy it if the environment and mindset are good.
Its all about your limits and how you handle what your experiencing. I have tripped in some environments which were not very good for tripping, but i have made it through it.
I have really only had to try and deal with 1 bad mushroom trip, mormon friend ate mushrooms for the first time at a rave, he seemed to enjoy it up until the peak and then he just kind of lost it.... But for the dose of mushrooms, the enrollment was not conducive to the drug. I am far better in chaotic situations with acid than shrooms.
Your more prepared than most are, just eat it when you feel the time is right.
Just take note of when you have some free time and see if the weather and your mindset are good. It was foggy the other night and i wanted to trip so bad. But generally if there is nothing really nagging at your mind in a negative way, i generally feel its suitable for me, be comfortable with eating the acid, put it on your tongue, and then find some way to kill an hour and not think about it....
But yea, steer clear of chaotic situations of any sort, mirrors are pretty creepy but i always find myself lost in them for a while, closed spaces, and whatever generally makes you anxious.
And just keep a couple xanax in your pocket in case it any anxiety does happen. But go with it and just let go.