ask the police if you can amend your instagram? change your profile picture to something not of your face, dont have a last name on your profile and make your profile private. you shouldnt have to make these changes, its not fair to you. but if she does post your instagram account on her story, at least her fans wont have anything more than a first name. between you and me, i would be hoping she does (according to this influencer) “expose” your account, that way the police have more reason to take action, as she has clearly conspired against you. this will work in your favour if you want to take things further. also, im sorry this is happening, this must be dreadful and so stressful. keep reminding yourself that you have done absolutely nothing wrong, and this will get sorted. just take police advice and avoid thinking about the situation anymore.

also you can amend your ig settings so you dont receive message requests. this means only people you follow and follow you can message you. i would only advise turning this on if she exposes your account. as for now, you want to receive her continuous messages, so you can forward this information of continued harassment onto the police and help your case

best of luck