To prepare for the GRE, start by understanding the test format and the types of questions in verbal, quantitative, and analytical writing sections. Create a study plan that focuses on your weak areas while practicing regularly with sample questions and mock tests. Improve your vocabulary, reading comprehension, and problem-solving skills, and review basic math concepts thoroughly. Time management is crucial, so practice solving questions under timed conditions. Consistent practice, analysis of mistakes, and using quality study materials will boost your confidence and performance on the exam.