1. A method for operation of a customer service self-care server comprising: receiving a request from a mobile wireless device; receiving a selection on an application installed on the mobile wireless device; receiving a package of metrics and device state information from the mobile wireless device; selecting a cohort of substantially similar mobile wireless devices by: comparing a current configuration of the mobile wireless device with a past devstate and netstate of each of a population of mobile wireless devices to identify a first subset of mobile wireless devices whose past devstate and netstate are substantially similar to the current configuration of the mobile wireless device; selecting the first subset of mobile wireless devices for further analysis; and comparing a current configuration of the mobile wireless device with a current devstate and current netstate of the mobile wireless devices in the first subset of mobile wireless devices to identify a second selected subset of mobile wireless devices (i) whose respective past devstate and netstate are substantially similar to the current configuration of the mobile wireless device and (ii) whose current respective devstate and netstate are different from the current configuration of the mobile wireless device, the second selected subset defining the cohort; transmitting information concerning potential performance improvements; and transforming a network account and its device configuration.