I believe during my son’s cycle they came out late April early May. You can prep for it by gathering things you will need. Birth certificate, vaccination records, addresses for places lived, schools attended, places worked for the last ten years. You need names and addresses of immediate and some extended family. Most of that is for the SF-86 form which is for a clearance.
If you don’t have a passport you could apply. It isn’t required but comes in handy if you get selected for a trip (DS got selected for an LREC trip end of plebe year and without his passport wouldn’t have been eligible).
Spend time with family. Quality time. Cleanup your room and closet. Make memories with your family and friends. Stay safe and healthy.