I am having trouble setting up my new echo dot
in the app the screen is headed Commands and has three icons at the bottom microphone keypad and british flag
i can't figure out how to get from here to the home page
I think you don't have the Alexa app. I suggest you uninstall whatever app you have installed. Go back to the app store and find the "Alexa app from Amazon."
Then you can follow the Quick Start Guide in the package.