An adventure does not have to involve a passport. In a week that has closed in around you, it can be getting off the bus two stops early and walking the rest through a street you have never had a reason to enter.
The point is not the street. It is the small proof that the day still has doors in it, that you can do something unplanned and nothing bad happens. Some of the fear of adventure is really the fear of discovering you have become a person who no longer does things. You have not.