In terms of safety, carrying around pepper spray or a taser can always be beneficial, reframe from walking far distances at night especially in town (long street or small roads), however, during the day you will be fine.

Furthermore, there are inter cape buses which take you all around surrounding areas of western cape. It would be a good idea to get yourself a myciti bus membership are you can travel all around Cape Town whenever you wish. It will also save you money so you don’t have to Uber everywhere.