Hi and welcome to the game and to the forum.
Firstly do any of your Facebook friends play T11? If you have not already done so, you should link your account to Facebook and any game playing friends will appear in your friend list.
You can also add friends by looking at other games in your League / Cup and see who are active players and supporters then add them as friends.
With regard your stats not appearing, I would suggest that you uninstall then reinstall the game (make sure that you link to Google or Facebook first though).
If you are still stuck, send me a pm then we can look at the issues further.