Prague becomes easier when Old Town, the castle side and riverfront time are split into logical days.
Day 1: Old Town and Charles Bridge
Start with the historic core and evening river views.
Day 2: Malá Strana and Prague Castle
Use the second day for the castle side and hillside viewpoints.
Day 3: New Town and slower neighborhoods
Finish with museums, cafés and less crowded streets outside the core.
Leave room for atmosphere
Prague rewards slower walking and evening time as much as monument checklists.