I can completely relate to that. And while you can miss that part of your life and want it back sometimes - it feels a lot better to know you don't need that anymore and that you are stronger now.
Good for you, for pulling yourself up from the depths. That is a VERY hard thing to do, harder than anyone who just stays on an even keel can imagine. It takes a level of strength they will never have. Keep that strength close. It is the reason you are alive.
"Addiction" is hard to get over. I used to love alcohol more than i loved myself, then I loved meth more than I loved myself. Now I have something better to live for, & I hope you get your chance to have somethng like that, soon!