Does your ticket list a date of travel and an assignment of a car and seat? I assume it does so it does not need to be validated since it is only good at that time on that train - no other. If was an open ticket - no seat assignment or car number - then it has to be validated (time stamp) to make it a valid ticket for that train. Only the Regionale train tickets are unreserved.
Once off the train look for a departure board near the tracks. Know the train number of your next train (on the ticket), find the number and it will show the track IF the train departure is within 15 to 30 minutes. If long it may not be on the board until closer to departure time.