so i made a situation like this and the signals are always red. what I'm I doing wrong here? could it be because of me making a free roam scenario
Try moving the shunt signal in the siding so that it and it’s anchor are behind the other side of number 1 or 2 of the main signal. In most cases the first run through a signal it stays red as it needs to be “activated”. In free roam you very often have to Tab in forward or Ctrl + Tab in reverse. There are YouTube videos on signalling that do help.