I am an avid reader myself and stick to the large print, as well. I can't say I have ever experienced what you are, but I do know how I feel about not being able to read like I used to. :/
Lulu is absolutely right about the library. Mine here is wonderful. They deliver my books to me, free of charge. I could get the audio ones, as well, if I wanted. If my library doesn't have one I am looking for, then will have it sent over from another library.