Replying to I AM RETARDED

Well here is my story:

I texted my friend. i did not know her phone is joined to her parents. she did not know it was me.
i sent several strange messages including
hello i hope a hippo dies in your basement and rots and smells really bad and that santa shits in your shoes
i also sent
and one video with swearing
do you have a pussy or a penis
now her father is going to file harraasment charges.
she said shed try to convince him not to
what should i do i already apoligized ans said i wouldnt text anymore.