The former glamour model has faced criticism since jetting to the party island after a string of photographs showed her posing provocatively and leaving nightclubs.
Writing in her OK! column, she said: "I’ve had a great time in Ibiza and people can slate me all they like.
"I work hard, I’m a good mum, I’m a young woman and I’m going through a split.
"There’s nothing wrong with going away and having a good time for a week after all I've been through."
The mother-of-three went on to say that her new reality show would be similar to her previous programme with estranged husband Peter Andre, but added: "You will see a happier side of me.
"It will just be me working and going about my life and will be out in September."
> Katie Price: 'Peter being a true c***'