Authentication for Power Bi

I am following the tutorial https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-live-data-visualization-in-power-bi, but I get to the point that I need to authenticate Power Bi.  I normally use Hotmail for all my Microsoft work, but it says I cant use that.  The office 365 I am running is my own and not part of a business.  So I used my College email and that seem to work, but when returned to the screen nothing seem to change.  I pressed the create button and I get the following messages.