You're stronger then you already know, and if I could have ran away, I would have! Don't think I'm strong or positive, I'm more realistic, and I say just get me through however which way I can, even if it's cursing and kicking along the way. My oncologist once told me, it's not a matter of what has happened or can happen that matters, but being able to pull through when it does, that matters most, and did.
Concentrate on yourslf, and moment, although helping others has helped me, in addition too, educating myself to this disease. I had oropharyngeal cancer in the tonsil, somewhat different than oral, had 70Gy bilateral radiation once, ipsilateral 4x totaling over 192Gy to the same area in my neck, aspirational pneumonia several times. was on a respirator too, and all cleared up. It's not something to ingnore either, and listen to your doctors.