There comes a time in life when you have to do something that is difficult, perhaps seemingly impossible. Then you decide to do it, and you do it because you have to.
And people make comments like, "You're such a strong person," or, "You're my inspiration," or sometimes, "I don't know how you do it."
And you just smile and nod and walk away, knowing all the time inside that you've simply grown up, and they haven't.
Everyone grows up eventually.