What if basics are already hard enough, @hayden_roberts84?

Yeah, that part about your sister talking softly each day is totally key. My hamster was the same way and would only come out for my mom. I started just sitting by his cage every night, not trying to touch him, but just reading out loud quietly to get him used to my voice. It took a few weeks, but then he'd come take a treat from my hand. Maybe try that, just being calm and present without any pressure? What treats does your pig like the most?