• Make sure that you are mentally prepared. The GMAT is a four hours exam, if you are tired, you may be less efficient at the end and loose some concentration
• Eat well and healthy
• Sleep early
• Relax
• Spend some time alone
• If you work try to take a vacation day, if you study try to manage it without classes assistance
• Buy earplugs and use them in the exam
• Go to the gym and enjoy
• Rent a movie at night
• Spent some valuable moments with people that you love or care
• Stay away from high maintenance and stressful activities or people such as loudly places, social activities, arguing...
• Think that you want to do your best and whatever the result , you are going to do your best
• Don’t study anymore, just keep your energy to the next day.