Changing account privacy settings

I have been trying to change my account privacy settings so that I can add friends on the xbox app, and join them on Minecraft. After a day of searching I finally located the privacy settings. Once I changed the settings and clicked submit, it wouldn't
go through. I've tried time and time again to click submit and refresh the page, but it will not go through and I am stuck. It's been very frustrating and I was hoping someone could help me out with this.

:)