Ask the Test Maker

This is for the first time i am writing about my queries.i am confused about how to start my preparation. Dont have enough money to take gmat classes. Also i failed in third year bcom and took the exam again in india. my grades are very low when graduated and dont know how bad i am in all the topics for gmat after years of gap. my foundation is very weak. i have dowloaded official guide 2015 and MGMAT guides. Need some serious advice for gmat preparation as i desire to do mba from top bschools. i have 7 years of work experience in same company in UAE. Hoping that my experience and recommendation letter along with average gmat score would be of some help i desire to get admitted in top bschools for MBA. Please give your valuable for gmat preparation.

Thanks