I haven't used a map, protractor, ruler and pencil for yonks.
It's called a "chart" and you don't want to be shouting that to loudly because its an offence not to carry one.
Anyway, best thing to do is get up there and do some short trips with some diversions. Gradually make the trips more difficult and carry the GPS in case the worse happens. Or take a PPL instructor up and get him to give you some tips and retraining. You could just wait to get retaught by your CPL instructor but it will cost big wedge that way. Also get your PPL Nav book out and read up, the concept of VFR flying doesn't change.
Remember, pilots don't get lost we just become temporarily unsure of position.