How to give 100% safe access with restricted permissions

 Install a Plugin named ‘AAM’
install-aam-plugin
 Go to ‘users’ & create an ‘Admin user’
 
 Go to the plugin ‘AAM’ then ‘Users’ and then click on ‘Setting icon’
 
 Then click on ‘Backend Menu’ 
 
Now restrict all the permissions that you don’t want to give