Everyone is different, and not being out of treatment for a long duration, as it can take up to two years to recover, and with a 2nd recurrence, effects your physical and mental well being, but time heals all wounds, hopefully. My thinking is different at each phase, having had 7 cancer opportunities, from diagnosis, pre-treatment, during treatment, and post treatment, and the longer out from treatmnt I tend to forget how bad I was or was not, and concentrate in the now. As with any loss, there are different phases one may go through such as the initial shock, blame, anger, and finally acceptance, to overcome cancer, and related issues.
Then there are physical impact that may need physical therapy, medications, other treatment, and trials like you are seeing about. I'm not one to use antidepressants, but some find them helpful.
Looking at everything as a whole can be overwhelming, including day to day activities in life. I like to break each down, set prorities, treat or try to correct one at a time, but some do overlap, that way I see some progress, are resolved, need maintenance, are ongoing, and seems less overwhelming.
They have support groups you can go too, some specific to head and neck cancer like SPOHNC, Support for People with Oral Head and Neck Cancer, that have local chapters in most states with monthly meetings, and may find it helpful to meet, and discuss issues amongst your peers.
http://www.spohnc.org/local_chapters.phpGood luck.
