There's probably a strong interaction effect with charisma. People who have an easy time making friends tend to see extended travel periods as a non-stop adventure of fresh experiences. Whereas if you're more of an introvert who takes a long time to warm to people, it can be a protracted period of crushing isolation.
If you are an introvert traveling, I strongly recommend lots of reading. Bring a nice camp chair (I have tried several, my current favorite is the Helinox Sunset with rockers and a small camp-stool-turned-ottoman) and sit in the shady spots in parks. Find the best library reading rooms, museums, etc. and just read. Draw if you’re into that.
Negotiate this time with your extroverted traveling partners if necessary.
