To make the experience easier, and to build up your confidence, give yourself plenty of time to prepare for the test. Make sure that your language skills are adequate. Be sure to practice on sample exams if you are not familiar with such tests. Language tapes are available for sale or rent to prepare for oral comprehension tests. Most U.S. standardized tests have a free information bulletin you are entitled to receive, either from USIS educational advising offices or other organizations responsible for administering the test in your country.
Bulletins contain sample questions and good advice about preparing for the examination.
The application process varies from program to program. It is your responsibility to make sure that your application is complete, including test scores, transcripts, letters of recommendation, and all narrative and financial information. Deadlines are critical and usually non-negotiable. Many universities and scholarship programs simply will not accept applications that arrive after the stated deadline. So try very hard to meet the deadline, or even submit early to compensate for the slow postal system and to give the university time to correspond with you if there is a problem with your application.