What do i have to do to help her further?

It sounds to me as if you're doing a great job of showing her some support! You're giving her a chance to have a conversation with you to "unload" if she desires, so that's a good thing for her. Maybe have a lunch date with her and just talk about other subjects to keep the conversation light. If she steers the discussion towards her problem, just go with the flow and allow her to get it off of her mind. You can be there for her and show support, but the recovery period is really up to her. She's lucky to have friends such as you! Friendship should really have no age barrier.