A route becomes more useful when it reflects the time you actually have. Start with your arrival and departure points, then choose one or two places you want to understand rather than adding every destination that looks close on a map.
Compare current train or bus information directly with operators before committing to a connection. Include time to reach the station, find accommodation and handle ordinary delays. A short distance does not automatically mean a convenient same-day itinerary.
Keep an alternative for the part of the day most sensitive to timing. You might replace a distant attraction with a local walk or move an indoor visit to another day. Flexibility works best when it is considered before the schedule becomes crowded.
Planning reference: Visit Estonia — travel around Estonia. No transport schedules or fares are reproduced here; check the provider before departure.