Contact Twitter support about this matter. If you feel comfortable, you can also send me a private message and I'll try my best to help you out (I know quite a bit about social media and how stuff goes down) so I don't think taking a post down would be the most difficult thing for me.
Twitter takes doxxing reports seriously and you would have a pretty big chance of getting the post removed if you do it that way.
Edit: just to clarify, it's always better to report the post itself than reporting the account. Twitter support will end up placing a lock on the account anyway so I think that reporting a specific post is way more effective.
I hope I helped you out, and please don't hesitate to get in contact with me if you need any more help or if this happens to you again.