When a father has a mental disorder/ learning disability could the mother receive sole custody?

My daughters father is missing part of his brain called the corpus callosom, which gives him a learning disability. My daughter is 9 mos and all of his visitations have been supervised and that is about to change soon due to the possession order that the court set up. They haven't yet been informed of his disability because I didn't know it would affect his ability to care for our daughter until now. He doesn't know how to make a bottle, feed her, change a diaper, interact with her, or simply watch her to make sure she doesn't get into anything she's not supposed to. He has shown this at all his supervised visitations where multiple people have tried to teach him how to care for her including myself, my mother, his father, and his step mother. He does not even attempt to learn. When he visits her, he is on his phone most of the time, or will just stare at her and leaves early every time. Would the court consider giving me sole custody if this was the case? (Texas)