Find a balance of seeing the sites and experiencing an area.
Those of us who love to travel almost always love to plan travel, too. It is fun having all of the pieces fit together or finding a great deal on a flight or hotel. BUT, one thing I have learned is to not over plan and over fill every day. Find another good deal and go back again. When I first began traveling I would start seeing the sites early in the morning and go until late at night under the assumption I might not be back. That is not a good frame of mind. Now I see one or two sites a day and the rest of the time I wander around and “experience” the area. Stop by a local sidewalk cafe for a cocktail or a cup of coffee and watch the city around you. Eat a sandwich for lunch in the park like the locals do. It is during these wandering times that I feel I have truly visited an area. Just my opinion but I hope you try it and I hope you like it.