I agree with the comments above.
I think she should stop posting about cheese, leather print hosepipes (still can't get over this) and dogs for some time, take a minute to write or film a proper apology WITHOUT adding the words "I tried but it's not good enough" or "I was bullied".
Talk about what good she has done (donated her AD money), and what she's going to do hereon.
Talk about the mistakes she's made in the past (since it's not a big secret anyway, Josie) and apologize again.
Apologize to the individuals she offended without making a big public show of it.
I've seen several youtubers address their mistakes by saying "yes, I did this, I made a mistake, NO EXCUSES, I'M SORRY" and it has made their audience appreciate them more.