As you said, it's really a good sign to realize our wrong deeds/mistakes, which marks us as a human being. But you know what, nowadays very few people can have this noble virtue, not everyone can realize the wrongs they have done, everyone just keeps doing it intentionally or takes them as fun, have seen many such incidents.

Yeah, good peoples are still out there that's why things aren't fully chaotic, we are still social beings. When we get stuck into guilt then it is really a hard time to pass, we don't get peace until we can get rid of that, how? some try to fix the damage, mostly they are irreparable and then we try to ask for forgiveness from the sufferer, if that door is shut too then the real fighting begins, with ourselves and that's what you are referring to, forgiving ourselves, yeah as we tried to fix in all ways now we should move on forgiving ourselves. This is really a hard step, faced with this kinda situation so I was relating myself while reading this.