As others have said, it's never too late! I do want to touch on some things you said in another comment about making phone calls for him and doing his food orders. It's one thing to be supportive, and another thing to allow someone to use you as a crutch. And then an entirely different thing to do these types of things to such a degree that you partner never has room to grow and experience avoidance reduction. I say this because I used to have my partner do the majority of my speaking-oriented tasks, and though it was helpful in an immediate way, it did give me this really constant reason to never leave my comfort zone. And one day I started to wonder, what if something happened to him, and then I'd need to speak to doctors or his family? Or what if we (god forbid) split up, and I was suddenly on my own, with next to no speaking skills and a mountain of anxiety about facing them? When you live life with someone doing the majority of your speaking tasks like that, you almost sort of feel like a fake adult. We appreciate it. And we also hate it. So just be careful to give him room to challenge himself and build himself up to a place of speech independence. (and if you finish his sentences/words for him, try to wean yourself out of doing that. It took my husband like a whole year, but now I can finally have a two-sided conversation with him!)