Full fibre replacement

Hi, my house has two traditional copper(?) phone points a master downstairs and a secondary in a room upstairs. Open reach have been to upgrade the property to full fibre, so I now have new fibre connection next to the old master socket. Is there a way that I can easily connect the new fibre to the old copper master internally so that I can utilise the connection to upstairs? All my stuff is up there and WiFi including using three eero 6 repeaters is rubbish. all was better the old way - I'm guessing they won't come and put the old back in😁
Failing that I fear I'm running a cat 6/7 up the front of the house through the roof and back down the other side?
Thanks