The default dates for the new session will be set to your current session to give you a fresh start. So, the statistics and questions will start over as if you've never answered questions. However, you can change the default dates to include the content of your previous session.
To do this, go to Settings in the upper right-hand corner of the Dashboard. Then under Default Dates select the radio button for Custom Dates. Change the first date to reflect the start date in which you want your statistics to be displayed. Change the second date to reflect the end of the exam session you intend on sitting. (Example: If you took the July '18 exam and do not want to see any questions you answered from that session during your Feb '19 exam prep, change your Custom dates to the beginning of the July '18 session {March 1, 2018} and ending on the end of the Feb '19 session {February 28, 2019}).
Please note: these dates can be adjusted at any time. However, it is best not to play around with them too much, as the questions are pulled depending on those dates and the statistics that are shown in your account are also affected by those dates.
The program is designed to not give you repeat questions in Questions mode until you have exhausted all questions of a particular subject based on these dates. In Exams mode, you will not have repeats until you have exhausted a particular subtopic. That being said, if you change the dates to include the prior session, questions will be selected factoring in the questions you have already answered during that session. We suggest that you decide when you start the new session if you want to continue from the prior session or start with a clean slate and then stick with those dates.