First Solo International Trip to Naples/Amalfi Coast

Hi everyone! I (27M) am from the US and decided to book my first ever solo international trip to Naples/Amalfi Coast this September (2nd - 10th).

I have done a medium amount of research and talked to some friends that have done a trip similar to this. It feels like I need to do some combination of the following

-Naples -Ischia -Procida (might be duplicative) -Pompeii -Positano -Sorento

I would truly love any and all advice on how best to spend these 8 days around the gulf. I know I want to do some sightseeing/hiking, but also just enjoy the beaches and the culture and obviously the food!

The only thing I have booked is the flight so truly every else is flexible.

Thanks in advance!