Method concerns for fent

[Lungz]

i think this is 1000% my desired method to cbt, but im not sure if im risking just giving myslef brain damage
i dont want to speak on my methods or ideas for this too far in detail but i have access to all of these drugs aswell as fent test strips, im worried about fent analogs and the potency of them, im pretty sure pressed blues will 1000% contain them and i have the funds to purchase 5-8 pills labeled as 'for experienced users only, smoking only' which basically just means theyre potent and deadly, but how deadly? i have no opioid tolerance, but is there a chance i could just cause enough respiratory depression to damage my brain and wake up the next day even if they do test positive for F?
has anyone here have experience with blues or attempted this and failed?

 

[Red Scare]

Brain damage only results from being found after you have stopped breathing.

If you have stopped breathing, you only have about 15-25 minutes to be found and revived or you'll be dead, but brain damage can occur after just 6 minutes. If someone finds you in that short window of time they could revive you with narcan, but if you had been there for several minutes not breathing, that is when brain damage occurs. Most non fatal opiate overdoses result in no permanent damage.