here's "nightline's" ashan singh. >> reporter: it's here on her family farm in franklinville, new jerseye mckenzie trush comes alive. >> growing up here has been such a really fun, unique way to grow up. >> reporter: it's one big, happy family. >> these are my pets. and like my family. >> reporter: mckenzie's upbringing has been unique in more ways than one. she was born with a rare form of dwarfism called semd, one of only 175 documented cases in history. she's had to find ways to adapt her whole life. competing in equestrian shows. and now the aspiring actress is making her own path on social media. actress is making her own path on social media. >> now i'm no yogi but i think that was pretty good. >> to go from growing up on a farm to this past year, you kind of turned into a pretty big tiktok star. >> yeah, it's been a bit of a really welcome, fun change. >> what's that like for you? >> so, like, quarantine started. it was like, now is the time to do the thing i always say i'm going to do, which is make a tiktok, and like post like kind of educational but fun videos. so i just made o