I think it is good to know that you`re responsible for what you do in your life. For what you do and what you missed to do. It`s your own responsibility and you don`t have to say sorry to anyone, only maybe to yourself, if you do a mistake. At least as long as it doesn`t influence others`lifes.
So, this conciousness of this responsibility can make you much more active. If your life is boring, it`s your own choice. Take the chance to create your life.