Law / Getting a Polish drivers license / Poland's residence permit (how long it might take to get?) [25]

hi,
I am a EU citizen who is working in Poland for over a year.

I never got a residence card, as I am leaving the country every 3 month anyways to go home.

I have a contract proving i am living in Poland for over a year. Is it still necessary to get the residence card, even if I can proof that I live and work in the country for longer than 185 days?