OP, i think i should once again stress that this is a BAD idea.
before you do ANYTHING you NEED to realize that no matter what happened, no matter whats going to happen,
NONE OF IT FUCKING MATTERS ONE SINGLE BIT.
you can over analyze and think about what went wrong or how you might have done shit different,
or why things happened the way they did, to your hearts content-
but at the end of the day IT DOESNT MATTER.
things are the way they are for a reason, and that cannot be changed.
this reason may not be clear to you right now, but taking acid, even with the intent of sorting out "post relationship thoughts",
isnt going to make it any clearer.
here is what will happen- and one of these WILL happen-
1) You end up thinking about what happened in the relationship, everything good and bad, you bawl your eyes out and go temporarily insane and come out the trip refreshed with a clearer head thinking toward the future.
2) you think about the same shit, bawl your eyes out and go temporarily insane, curl into a ball and keep on crying for hours, at one point having a psychotic break and just lay there catatonic while your mind goes insane constantly reliving what went wrong, why it happened etc.
you come out of the trip completely traumatised, (worse than before) and for a good few weeks you are a broken man. this could continue for weeks, months even years.
(heard of post traumatic stress disorder?)
3) you think about all the stuff, you have an emotional rollercoaster once again, but this time you convince yourself of something that you will later realize isnt true-
examples: you never really loved her, she never really loved you, or whatever the lsd soaked mind can make connections to.
basically OP, ITS A BAD FUCKIN IDEA to use lsd and psychedelics/drugs in general to try and sort your head out
after a relationship ends, especially if it was a traumatic breakup.
i have been through emotional and psychological hell in my most recent relationship,
the breakup was extremely traumatic, i was suicidal and didnt speak to anyone and barely ate for weeks.
i took acid once thinking that i was ok to do so, and that i was getting over things.
NOPE. big fucking mistake that was. a song came on a youtube playlist that reminded me of her-
this is the one-
"Call Me".
it all went downhill from there.
(this was a few months after the breakup btw)
another time i took with the intent of sorting my head out and getting over shit, ended up having a psychotic meltdown, curled up in a ball on my bed screaming at the top of my lungs (actually screaming) with absolutely no sound coming out, soaking my bed with tears.
the last time this happened (3rd time) it wasnt as bad but i was still crying my eyes out.
now im fine, but this is only after realizing NOTHING FUCKING MATTERS AT THE END OF THE DAY.
whats done is done and in the past and you cant change it.
before you go tripping to solve your problems you should try being sober for a few months (ganja doesnt count. it actually HELPS the process of healing so i advise it if you toke).
the best way to sort your head out post-breakup is to do so on your own.
without lsd's assistance. trust me on this one.
keep in mind LSD amplifies reality x10000 as well as your moods and emotions,
emotions and thought patterns on lsd are unpredictable and can go anywhere at anytime.
so please, for your own sake, dont try this.
you will be much better off with a clear head if you want to heal,
because acid certainly does not make things clearer, it just shoves your face into the cold hard facts some more.
(imagine a window. you can see the tree outside. lsd comes along and shoves your face against the glass like a bully.
now, you still see the tree, not really any better than before.
LSD says "but hey! your eyes are closer to it. thats good right?")
good luck OP, and remember,
time is the best healer. take it from someone who knows.
Ps- these trips did work out positive in the end but fuck me i wouldnt recommend it to anyone.