Hi Philomena, it is easy to go around Old town for someone who is not very confident, it is not large town, all streets lead to the main street Stradun/Placa so you cant get lost. Locals are friendly and will show you directions if you are unsure. You can download some maps here dubrovnik-travel.net/map/ for you to study and once you arrive there, take some free maps from local tourist office. You can also use your smart phone map app to help you walking around the town. Enjoy!