1- can I swap my syrian driver's license with a polish one ,once i get to poland ?
I just checked in France, it seems that during your studies, you don't have to change it. Of course, can't be sure it's the same in Poland.
Although, your license may need to be translated into Polish at least.
2-can I drive in poland with an international driver's license (even though i'm polish ) ?
With an international driver's license, I'd say yes...
Did you try to contact the Embassy of Syria in Poland? They probably know much better than me ;)