anyone know how to play a dizi or know of a site that teaches you? I've found some sites for fingering but it wasn't very detailed and i'm still not quite sure if i'm blowing into it right

I don't believe in teaching over the internet, so no, I don't know any sites.
However, as for blowing technique, you will be fine if you use the same technique as on a Tin or a Piccifife, there's not much to be done wrong.