This quote is about perseverance and having a positive outlook. It encourages people to keep working hard, even if they make mistakes along the way, because it is important to be proud of what you have achieved and to have tried your best. The quote suggests that it is ok to fail, but it is more important to look back with pride at what you have achieved. Even if you are terrible at some things, the important thing is that you are still trying and pushing yourself to do better.