Selling in Dubai is mostly a pricing problem wearing a marketing costume. The listings that sit for six months are rarely badly photographed. They are priced against other asking prices rather than against what comparable units actually transacted at, which are different numbers and only one of them is real.
The second thing that decides your outcome is supply you do not control. If four towers in your community hand over in the same quarter you are competing with a developer's incentive budget, and no amount of staging fixes that. Knowing the pipeline before you list is worth more than any negotiation tactic afterwards.
What follows covers reading the DLD record rather than the portal, judging days-on-market honestly, and deciding whether an exit now or in two quarters serves you better.