Man, come on now.
Not everyone is a leader from the start, you had that chance, not everybody does. I don't give a shit wether I'm a leader or not, it's just another stupid label that you stick on yourself or not. I take decisions when I want, or when I need it. I am a leader to myself, others will follow if they want and I could give a fuck if they come or not.
It comes from the inside of you, not from what you tell others to do. When you're 14-15 you are still learning how the real world works, still breaking off from your kid fantasies, if you don't pick up on self confidence and leadership right away, you might get bullied but that doesn't mean you're not going to get your shit together and start walking with your head up later.
She never gave herself enough time to find that out on her own. I can hardly blame her, for feeling like that, but I do not approve of her suicide.