The only thing you can't wish for is more wishes. I would wish for complete control over all of reality forever, so I can put myself in the JoJo's Bizarre Adventure Universe with immortality and whatever powers I want.
I'd either wish a complete life restart when I die, transport back to when I'm 10 with the knowledge of what I have done in the past so I can try and fix some things (future knowledge) or wish for one of my closest friends to still be alive.
This game likely started something inside me. This was the first time i was introduced to many of its themes, no joke. I'd never played anything so surreal, kind of scary but also funny in my life.