Sorry you are feeling so low. During my treatment I hit times of real lows. Probably a combination of recovering from the Whipple and not getting back to "normal" as fast as I thought I should and having chemo. I saw a counselor. I also began Remeron which is an anti-depressant that increases appetite and helps with sleep. Once I was feeling better I stopped taking it. So, if your fear is that you will always be on them, it was not true in my case. It really did help, because if you aren't eating and sleeping it becomes a cycle and certainly isn't good for your health overall.
I would recommend staying away from long term use of Benzodiazepines if you can, however, I took Ativan before Chemo treatments and that really helped me. They are easy to get dependent on and you cannot drink alcohol at all when taking them.
You don't have to suffer with depression during treatment. It is not a sign of weakness to take meds or seek counseling. You would seek treatment for a physical malady, why not a mental one?
Hope you are feeling better soon.
Survivor of cholangiocarcinoma (2009), thyroid cancer (1999), and breast cancer (1994).
My comments, suggestions, and opinions are based only on my personal experience as a cancer survivor. Please consult a physician for professional guidance.