This is about if you have wronged someone else, not if you are wronged,

If you've wronged someone else, maybe you should live miserably if you can't possibly make up for the wrong.

Are some accidents truly unforgivable?

No one should be punished for the rest of their life because they wronged someone in their childhood. If they’ve grown, feel remorse and regret, then they’ve done their time and need to forgive themselves.

There no point in carrying around such a burden. Very few people deserve to be miserable.

This post does not limit itself to true accidents. Indeed, both people involved were negligent. Preventable harm that you do not prevent through your own choices can very well be unforgivable. Pretending that everything should be forgivable is a heinous thing to do to victims, and they have every right to not forgive or forget if you have caused them irreversible harm through negligence or accident. A victim has the right to never forget how you changed their life.

You do not have a right to be free from the burden you have caused someone else.

I can't necessarily agree with this. Some people are hurt over extremely minor offenses, which may or may not have been an accident. What if the perpetrator of the offense has grown and tried to make amends for the wrong they've done? Do they need to carry the burden of guilt forever? I think there is room for forgiveness of oneself, even if those you have burdened do not forgive you. Maybe it's not the same, but everyone is different. I would hate to think that someone in their early teen years did something selfish and stupid (like most of us do), and they were not forgiven by the victim, and they had to carry that with them to the end of their life. Society does not grow with an overwhelming sense of guilt (now, this is very different if you intentionally cause malice and are truly not sorry, and do nothing to make things right).

Eh, not that harshly. Not that you should be miserable but that such a large event SHOULD have a large impact on you as a person and SHOULD maybe cause changes in how you live your life. You should still be treated with dignity and basic human decency unless and until you show yourself to continually harm others for selfish or negligent reasons. One bad action doesn't make you a bad person but it is still a bad action and that should be remembered.

Actions have consequences and we shouldn't try to hand wave those away because some people seem uninterested in going to therapy and dealing with the guilt they have. You can always do better, but that doesn't invalidate the bad.

People are complex, the world is not black and white, everyone is a huge story with complex rationalizations. Reflect on why you do things, reflect on how you affect those around you.

There is also power in discovering how to forgive yourself, especially if your wrong was unintentional, or you made a mistake that you deeply regret. It's too easy to walk around with guilt in your life, and maybe you don't ever get to speak to the one you wronged. Should you take that to your grave? Does that help anyone?

That just breeds more misery and does noone any good.

If you've done something bad, then forgive yourself and be kind to yourself, because you need to do better in the future. This is a better lesson that will do everyone more good.