Seriously just what on EARTH would you understand about their lives, their past, their pain? (even if they now look fine?) This world is cruel enough and there will be nobody (maybe just a few) who will actually understand and accept you - the only thing we can do is tell ourselves we can do it, tell THEM we can do it despite being hurt by their bloody doubtful stares. That's when they'll start to believe you. And when they do, you'll really start to believe. So it started not as a solid, self-grounded belief - but it works in the end, anyway. At least I think I've learnt this time.