Pole shift,
What did it say on your FZ contract when you signed?
As mentioned earlier, you're doing nothing we haven't for last three/ four years. Flydubai is a seniority based airline, that isn't going to change i'm afraid.
I really don't see why a recently joined pilot should get all the benefits that it has taken three to four years for everybody else to achieve, during which time, many pilots had left because the rosters were so tough.
Hang in there, like all of us have!