What can i do about cyber bullying, slander, stalking and harrassment? what legal actions can i take and who do i go to?

Asked in Honolulu, HI - 5 months

My current BF ex wife has been harassing me since march of this year. i have let most of it go as not to feed into it. She has hacked my private FB messages in which she has admitted to and sent pic of my inbox to me. in that case I did block her and whoever else she might be tied to that has not helped. she is still monitoring my profiles fb, instagram. recently she has posted an inappropiratly pic of me on her fb in which case she made public and put a ton of hashtags(#) with the pic a lot of obscene comments was made by her and her friends. what legal action can i take? and how long do i have to do so? this is a nightmare thank u so much. and i do have pics of her profile which shows what she has posted. and i kept all text messages.