Oh.. I think so too.
I was born in Tokyo, but train system is still difficult.
Ticket machine can switch other languages.
In Tokyo, colors and numbers are assigned to each station. If you have a route map, I think that it is good to check the boarding and departure place by that number.
Google Map is useful for checking the route from your current location to the desired location.
Inside the station, the direction is indicated on the signboard displayed above the head.