PIP help with form

hello I'm new on here and would like some advice on filling in the dreaded PIP claim form.
My daughter is 16 years old and has Usher Syndrome. She was born profoundly deaf and has low vision. She is night blind and has no peripheral vision at all. She will eventually lose her sight. Even after 13 years I still get very upset saying this.
The form has come at the worst time possible. Any help would be appreciated. My older daughter went through the same process last year and after 6 months of stress she was awarded enhanced rate for both components. She has the same syndrome as my younger daughter. Thank you