you bet! GMAT is tricky and needs a lot of preparation before sitting for exam.
the whole idea behind the GMAT is to prove to your board of admissions that you have what it takes to enroll in the MBA program which in my opinion is an aggressive , exhausting program.
it is not a good idea at all to enroll in an MBA program with no work experience and a much better alternative for you is a masters in science (MSc) instead of an MBA until you really dive into the real worlds.
On the other hand, it is always an excellent idea to prepare for GMAT , the score is valid for 5 years and it is better to take the exam while you are still fresh and remember all the basic math that you had in college or even in thanawya 3amma ! believe that is a challenge for me now :-)
i hope that was of a benefit and don't hesitate to contact me if you have more queries.
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