"Now the hero is someone who steps up to the plate and says wait a minute the attacker is wrong Sara is good like Corey did. He is a hero."
A possible interpretation: If you apply the Triangle to the above scenario, you define Corey as your Hero, which makes you a Victim, which makes your "attacker" the Bad Guy.
Were you really attacked in the first place? Or just disagreed with? I don't think anyone was calling you a "bad" person. Roles often switch and people often battle for roles. I can say that the Triangle phenomenon helped explain things to me in my personal life and I think ultimately it all boils down to discovering the truth in our motives, and recognizing motives of others, that helps us to avoid destructive patterns. I do think that if you knew that you were a "good" person (your words), you wouldn't need a Hero to define you as such, and you wouldn't give credence to people who you saw as defining you as "bad". Maybe they were not defining you as "bad" in the first place. I am not attacking you or insinuating, I am just bringing up a possible interpretation. The Karpman Triangle does not always exist, and is often a matter of interpretation. Perhaps people were ganging up on you, and Corey set them straight which is another possible interpretation.
The Karpman Triangle can be a bit confusing. Not all victims or heroes or bad guys fall into the Triangle. A fire fighter can be a hero but probably would not be a hero in a Karpman Triangle sense. The Triangle describes forcing unwanted/unhealthy roles on oneself or others in a triad, seeking status that should only go to real victims and heroes. Imposters, really. Been there, seen it, done it.
Interesting that you say "to realize that I am in charge of my destiny".
My interpretation of why we would want to identify a Karpman Triangle is to take back control of ourselves, which is really what you said there, to take charge/control of oneself. When we place ourselves or others in the roles of victim or hero or bad guy aren't we really simply giving up control to others based on how they see us? Living our lives based on the judgments of others? I have other theories about life, but they all seem to lead back to control. So perhaps we each took a different path that led to the same destination...
I use my secret number so that when the powers that be track me down through my anti-establishment posts on Curzone, it'll take them a few extra seconds to hack through my number.
Good thing we are just friends, otherwise I'd let you know how I really feel! ;)