Map making software

Does anyone have experience of making their own customised maps? All the map making software I have come across use pre determined templates. You can change the colours and add labels but you can't redraw the boundaries and create your own maps.

A long time ago, when I still had a desktop computer, i used Microsoft Paintbox. That did everything I wanted. I write history presentations and would rather draw my own maps than use ones I have found on the Internet.