Matthias
I, for one, am confused by your last post. First, you invite everyone to a site about healing narcissism and have not explained why people here would be interested. Nor have you revealed why you are here, there, or anywhere. What are you struggling with, why are you seeking support? Why does it hurt when someone says NPD cannot be healed? (I'm not saying it shouldn't hurt, just pointing out that you haven't explained your presence here in a way that we understand or can easily accept).
It is logical to assume from your invitation to the N website, combined with your style of communication that you are at least flirting with symptoms of narcissism. Some of this can be explained by your age, I suppose. However, you seem well read enough and aware enough to know what a serious topic you are "playing" with. Offering up the fact, now, that you are a teenager is, to me, just a maneuver to avoid taking responsibility for this communication. It just won't wash here.
The point of this community, IMHO, is to seek growth and offer support to others. People here will offer up their stories and are ready, indeed looking for, feedback and advice. This is a source of growth. If you are uncomfortable with feedback you didn't expect, you might want to ask yourself why you feel that way.
If you are truly seeking support, not just attention, we would encourage you to do so and share freely. You might want to take into account who your audience is, survivors of narcissistic behavior. All of us reserve the right to feel uncomfortable with anyone's post and say so, in a way that is least harmful to others.
Best wishes on your journey...