They say that once you start travelling, your list of places to see only gets longer, not shorter.
This is absolutely true. I started backpacking more than 20 years ago and my list of places to go next just keeps jumping up in volume. This is a good thing though right? It would be a shame to run out! For me the only places I wont go is the places that the masses do go to and this is based almost exclusively on those places generally being out of my budget.
There are some places worth seeing despite this, though over-tourism and inauthenticity are definitely things to avoid.