I'm sorry you are having such a hard time.

Do you think the Zoloft has stopped working? I think now would be a good time for you to visit your pdoc and think of a med change or augmenting the zoloft. I used to cut myself but I have been SI free for one year now.

Do you think that any of the cuts need to be stiched? Are you making sure they don't get infected? Are there any depression help groups around where you live? I find group support helpful because you don't feel so alone.
You can send me a PM whenever you need to. I am a good listener.