I'm an ex-trainer of service dogs here in Texas. If you are curious, that is the first step to independence and you should educate yourself by first going to
www.texas service dogs.org
There are strict rules to be followed concerning the care of the dog (i.e. Vet. care, diet, exercise, etc.) but the organization will totally work with you in consideration of your needs and ability.
You will NOT be allow to pick the dog, this is the #1 reason the deaf back out of the program because they want their own choice. Following your own lifestyle evaluation, your "home" will also be evaluated (i.e. home/apt./trailer....yes/no children....yes/no other pets)
One thing you probably want to know is cost. First consider the organization considers the value of the dog to be $8,000, that is NOT a typo. You will have to pay an application fee (i don't want to say what it is because it may have change). Unless things have change in the last four years, your Vet. care is paid for....you are just responsible for taking your dog to the scheduled appointment.
Once you are certified with your dog, you can, under ADA laws, take the dog anywhere with you. That includes a restaurant, movie, hospital, church, work place, etc. In short, wherever your ears can go, the dog can go.
I hope this has been a benefit to you and that you take the next step to go to the web site.