Welcome to Neuro Talk. I am sorry you have TBI. I hope your recovery continues. Sounds like the animals on the farm are a good place to start with speaking again, animals are good to talk to anyway. They don't tell you when you make a mistake and are often kinder than people.
What were you a professor of? Hope you get to go back into your chosen occupation. all my best you you, and again welcome to Neruo Talk. ginnie