Like Busty, I have stairgates to keep my little one where she needs to be and I’ve also spent a fair bit of time getting her used to spending time without me during the day - leaving her in the living room and going upstairs for a while. My dog is super needy as well and would spend all day attached to me if she could, but after a while she got the idea she has to have some time alone when I’m working. Good luck, hope you can calm her