Sounds good. You can always be an example in how you work out your issues. Are either of you in therapy? That can help a lot too. And there are plenty of books about recovery from codependency.

One important key is to let her work things out for herself, because if you do it for her she won't develop her own strength. Just like a chick has to work its own way out of the egg, and a butterfly has to fight to get out of the cocoon. If you watch those processes, it is tempting to help them out, but if you do, the chick or butterfly will never have the strength it needs, and will either die or be severely crippled for life.