Welcome to GMAT Club.
Here are a few posts to guide you through the process: gmat-study-plan-for-gmat-novices-start-your-gmat-journey-80727.html
Or this one? all-gmat-cat-practice-tests-links-prices-reviews-77460.html
GMAT Prep is the best test but many think it is too valuable for you to waste at this point, so you can sign up for a free MGMAT Test.
Founder of GMAT Club
Just starting out with GMAT? Start here... | Want to know your GMAT Score? Try GMAT Score Estimator
Need GMAT Book Recommendations? Best GMAT Books
Co-author of the GMAT Club tests
Have a blog? Feature it on GMAT Club!
GMAT Club Premium Membership - big benefits and savings