Depends on what kind of thing I have done. In my case, if I hurt others, it's mostly intentional, and in that case I don't ask their forgiveness either.

Mostly intentional you say. Which means there are those that are unintentional. And if people will forgive you for that, why can't you forgive others also? People can hurt us without knowing, right?

I don't see unforgiveness healthy or peaceful in any way. What will happen to love if everyone decides to harbour unforgiveness? What more will become of this already chaotic world?

But it's you understood that you don't deserve it from others if you don't or won't give it. It's okay. And it's your life, who am I to tell you how to live it? Haha. However, forgiveness isn't about emotions.
Gracias.