You are being a GREAT friend...I just worry about you taking on too much of the responsibility yourself. Your plate is already pretty full. You can support her and spend time with her and talk to her, but don't let this get too overwhelming for you! I've fallen into the trap of trying to be too much for others and in the meantime not realizing what a toll it was taking on me! Everything you are doing is awesome, just make sure that you're not giving too much of yourself so there is nothing left for YOU!
She is lucky to have a friend like you!