Hi John,
It is a very depressing time indeed when you are told one thing and it doesn't seem to be working. Although you are still in early stages when it comes to healing. My mother-in-law is over a year since her dissection and she had a mandiblectomy as well. As a result her dentures were remade, but she can't use her lower one, her tongue, which she has little control over keeps pushing them out. She too finds the prospect of only ever eating mush very depressing but she is still happy to be here! Hang in there, it can only get better.
Karen