Everyone heals at their own pace. I'm a year post surgery and having had radiation and chemo my tongue still has its moments - its sensitive to temperature and swells up or freezes up with icecream, but for the most part post op I was doing very well eating most foods and speaking better. Then they radiated me and it was like starting at 0 again... (actually in the negatives) give yourself more time and just continue to work at it. n, and d are my worst letters! patience!!! good luck!