Immortality is a form of absurdism that exists only to soothe those that have yet to accept transience. Something that many people never really do. It's sad to let go, it really is. Tiny portions of our daily life are the small deaths and the larger losses are always landmarks. Losing home, losing identity, losing connection.
If you can accept the eventual nothingness that will befall the meaning of your being here. You only need to look over your shoulder to see death acceptance a single step away. If you can accept eventually having nothing and being nowhere through the dilution value, you can accept leaving today. You don't need to, but you can accept it.
It's always been fine, young or old, no matter how good or bad the life was. Death has never been bad. It was only fear speaking. Communication too, is nice because there's a period at the end.