You can get filthy rich on real estate on real estate in UAE these days... it all a question of funding and risk management. If you can find a good balance that suits your temperament.
I have yet to meet someone that lost big money. Some project dont leave the ground others are delayed for years. Pull out. Reinvest and learn! So 30% over 6 months is OK for the risk involved. If you want to make more look at Ajman UAQ and RAK. I believe they will take off after Ramadan and onwards