BuddyPress.org

Okay guys in wordpress or buddypress when I login to my account even if I am not friend of someone, by default I can see all pages that I as a admin made and the posts in there and all the posts users made so my question is how can I make my community site like twitters or facebook that people can only see their own page with their own posts. What I mean by this is that okay like on facebook when you go to news feed, you see the news from pages you liked, friends feeds and so on but all some way related to you posts not like what other people communicated with each other through the site.

One approach I can think of is that in wordpress every user has a ID number so I was wondering to know if there’s a plugin which allows you to set up the pages in your site on these ID numbers to the point that every user have different version of these pages.