Frustrated

I really thought by now I would be doing great but I'm not . My saliva glands were working then quit was starting to eat getting back to being me then bam quit working no saliva for 3 weeks now the dry mouth is horrible I have tried it all all I can do is sip water all the time. Can't eat or talk have not been out of those except for doctors . Was really hoping to get rid of my feeding tube when i go for my scan August 5 but not now . It's been five and half months. stage 4 tonsil cancer sucks . I hate to always post downers but you guys are the only people who undlistening I feel like I'm becoming a burden to my family. I just want to get better .