Wikipedia's guideline for the notability of voice actors is:[1]
> 1. Has had significant roles in multiple notable films, television shows, stage performances, or other productions; or
> 2. Has made unique, prolific or innovative contributions to a field of entertainment.
This can be difficult to define. I'd suggest you instead follow the guideline of notability for people generally, which is:[2]
> A person is presumed to be notable if they have received significant coverage in reliable secondary sources that are independent of the subject.
I'm always sorry to hear about someone that has gotten frustrated editing Wikipedia. Even though I'd discourage it as a conflict of interest, editors have successfully created articles for friends by simply citing reliable secondary sources that cover them. I'd suggest you give it another try if such sources exist and reach out in the Teahouse[3] if you need help.
[1] https://en.wikipedia.org/wiki/Wikipedia:Notability_(people)#...
[2] https://en.wikipedia.org/wiki/Wikipedia:Notability_(people)