Ergonomic keyboard is the way to go. I have a Logitech which looks similar to the pictured image posted by Blood of Tyrants. The Logitech is over ten years old and I hope that it never fails.
Dragon Naturally Speaking has to be spoken to by the user. The user has to ‘speak’ to the program for hours so that it can learn the user’s accent. Did you do that?
Yes, even did extra training. And I am dictating through it now with the words in brackets being those I added. I also added words to the vocabulary. And I have a fairly good class had thought [Koss headphone] that had good reviews for dictation. But it still fails to get words correct about 10% of the time, while sometimes coming up glitches and a recurring error on a new ( thank God) PC [W/ 8.1; ASRock 970 EXTREME3 mobo; AMD 6350 3.9ghz 6 core 64bit cpu; 8gb ram]. The auto punctuation does not work right either on third-party applications such as OpenOffice or Firefox.
Yet I have used it when writing at length (and probably should use it more), and it has much potential. One thing it should be able to do is configure it as easily as making hotkeys, so that you can choose your own words for custom commands. And use your own writings for voice training.