Insecurity is pointless. It is beyond arbitrary and is actually a weakness. Be aware of your flaws, but embrace them. If you can change them, then change them. If not, then accept them as a reality and move on.
Madness string 81326
Sure, perhaps you could have done differently, and perhaps it might have ended differently. But how could you have known? Forgive yourself, for you still don't know, and nor does it matter. The circumstances were unique, and you were not the perpetrator.