Bruce Lee was severely nearsighted. He chose his first martial art because it allowed him to fight an arm's length away.
Maybe you are completely blind. If you have arms and legs, then you can learn to protect yourself.
Whatever your limitations, your strengths are more numerous and important. Think about that for a while.
List your strengths on paper if you need to. You will see.
Jeet Kune Do, Bruce Lee's martial philosophy, was expressed as "having no limitation as limitation". He did not believe in accepting limitations. He achieved a fame greater than most would even dream of. Don't you surrender to limitations either. The world needs you to be the best you can be!