I started using and struggling with depression so young that I can barely remember before that either. I believe your memory will get better with time spent clean. And now that you're clean, you have the opportunity to get to know yourself again and to grow and change as well. I feel like a different person, too, but that's a GOOD thing, at least for me it is. I feel better now than I EVER remember feeling. And I hope that you will, too!!
Love and hugs,
Eddie