What Do Students Do When GRE Preparation Time Runs Out

I planned to prepare well for my GRE exam, but my college presentations, group assignments, and part time campus job took most of my study time. As the exam date came closer, I saw many discussions where students ask if it is possible to pay someone to take GRE exam when they feel unprepared. Has anyone here faced this kind of situation during busy student life, and what solutions helped you handle the pressure and complete your exam plans on time?