Every one of us have messed life up over and over and over again. It may take different forms, last for different amounts of time, or have different consequences, but we all deal with the same things and make the same mistakes. We find ourselves in the same boat with a big irreparable hole in the bottom. All of it stems from an attitude of pride that thinks we know best and that we should each get our own way.
God calls that sin and not a single one of us has avoided it completely. In fact, it is in our very nature when we are born. What sets Christianity apart from other religions is that we understand there is no way any of us can be good enough to earn a spot with God. In fact, the punishment for our sin is eternal death, complete separation from our Creator God. It is sad, but it is just, and there is no amount of good work we can do to outweigh it. That's bad news...