Hi,
simple solution:
- Go to administration->components->Easy Profile
- Create Field group 'My Page'
- Create Field 'Title' in Fieldgroup 'My Page' - type Text, not visible on profile
- Create Field 'Content' in Fieldgroup 'My Page' - type Textarea (this field type is available only for Basic or Pro version), not visible on profile (see screenshot1 to see result in user edit profile)
- Go to administrator->Content->Article Manager
- Create an article called 'My Page' (see screenshot2)
You can use in your article the Tagword to see fields of user in article (or module). see documentation of our plugin content at http://www.easy-profile.com/docs/26-plugin-content.html (this feature is available only for Basic or Pro version)
- Go to administrator->Menus->Menu Manager
- Create a item of type Single Article linked to My Page article. set this only for registered

There are many ways to do such a thing. But they require some knowledge of PHP.

I forgot,
with simple solution you have some limit:
- Not dynamic content (you have only one My Page for user)
- The admins not see the my page of user, their see the my page content on backend in Users Manage

for more advanced things you have to develop some plugin or use some other component