logging into Internet gateway

As a newbie to T Mobile Home, 5 days and counting. I'm old school, prefer access to the gateway via laptop web browser, with all the bells and whistles featured in the semi  functioning app.  I'm old school, don't see well and my fingers are logs. Trying to see the micro mini text in the app, or type utilizing a virtual keyboard is an exercise in futility. App needs a major overhaul, specifically for new customers attempting to set-up gateway for first time. App needs a clearer definition of which Administrator password it would like and what requirements required for user id's and pwords.