I disagree, all suffering teaches you how to at least deal with suffering better.

It will hurt terribly in the beginning. Perhaps it will keep on hurting for a very long time, but it is upto us what we make of that pain. If we are hurting, it means that there's a part of us that still feels. It's okay to hurt sometimes, because the pain we feel will eventually make way for something better. Never grow numb to your pain. Feel it and then slowly let go of it. Don't let it turn you into a callous person. The pain might be temporary, but the impact it has on you can be permanent. Make sure it transforms you into a better person.