This quote means that the person is saying sorry to themselves for things they did in the past. It's like talking to the girl they used to be when they made mistakes. They are forgiving that younger version of themselves for any wrong choices or actions they made.
In life, we all make errors when we are younger. We might do things without thinking or make decisions that later seem not so smart. This quote shows self-compassion. It's like saying, "I understand you were not perfect back then, and that's okay. I forgive you for those mistakes."
It's important to forgive ourselves for our past because it helps us grow and move forward. When we forgive the person we used to be, it can make us feel lighter and happier in the present. So, this quote reminds us to be kind to ourselves and let go of past regrets.