Now it's time to assess what skills and aptitudes you have. If you don't have the skills you need to get the job of your dreams, you may need to acquire them through training. Or, you may have the skills to do a job now that can give you the financial support you need until you're ready for your next career move.
Either way, this gets you closer to knowing what you can do.
But what about my disability?
Chances are that the areas you are interested in will not conflict with the limitations imposed by your disability. But what if they do?
First, you need to identify whether they really conflict, or they only appear to conflict. Remember that Beethoven, widely recognized as one of the greatest composers of all time, was deaf. That would seem like an employment mismatch, but in his case it wasn't.
Technology now offers a staggering array of tools which allow people to write without using their hands, to read without using their eyes, and to produce a product without leaving the house. Changes in the workplace now allow people with a variety of disabilities to perform jobs that might have seemed impossible in the past.
Start with your passion.
If studying exotic animals in the wild places of other continents doesn't seem achievable, look into studying agriculture or veterinary medicine, drawing animals for magazines, editing articles about animals, or becoming a science teacher who specializes in exotic animals. Someday you may travel the world, but you may find fulfillment closer to home.