Same here. I regret surviving.
i think many of us feel this way. i have had 3 serious attempts, and the only thing i regret is that they were all unsuccessful. the first was a mistake on my part, but the other two had to do with someone else intervening...when with all the planning, logistics, etc., i should have been alone at those times and un-missed, at least for several hours. but for whatever reason, someone came looking for me both times and decided to check-in on me, and everything was ruined. although the last time they were almost too late, i was barely alive, but barely does not count when you have the end goal in mind.
so now this just causes me to carefully re-think the logistics behind a future attempt, which cannot be another attempt but MUST succeed. because the worst feeling is losing consciousness completely and thinking you are going to have sweet relief, it's all over, to wake up and be back in the real world, still living your life, again.