You have already asked her to help you and she's not doing it. It may be possible that when you continue to do most if not all of the work, she is being enabled to do nothing to change.
Perhaps you can think of splitting up the responsibilities and find a way to consequent her if she does not do her part. If she relies on you for money, etc. then you let her know she has to pull her weight and you've decided to do whatever it takes to have her do so.
This may have become her habit and knowing that you would do the work, she feels like she does not have to bother helping you.
there is nothing i can do about the depression if she will not help her self by getting help or going to the doc?
well should i say if she not going to pull her weight i am moving out