I don't know your story, but it sounds to me like you didn't get "nothing" out of it. You got a whole bunch of life lessons. You got the knowledge that you are strong enough to leave a bad relationship. You got the realization that you and your kids deserve better. You know better what you don't want for future relationships. Those are just a few. I'm happy for you that you're finishing up the paperwork and moving on to a new chapter in your life.