I NEED SOME ADVICE FROM A POLICE OFFICER?

SO I JUST GOT MY GED AND NOW I ENROLLED IN COLLEGE AND I REALLY WANT TO BECOME A POLICE OFFICER THAT'S MY DREAM, BUT I WAS TOLD I CANT BECAUSE I HAVE TWO MISDEMEANORS ON MY RECORD AND I GUESS IN THE STATE OF MINNESOTA THEY WONT CERTIFY ME AS A POLICE OFFICER, I THOUGHT I COULD GET MY RECORD EXPUNGED BUT I GUESS I CANT BECAUSE I HAVE ALREADY BEEN CONVICTED OF THESE CRIMES I JUST WANNA KNOW IF THIS IS TRUE AND IF I SHOULD JUST GIVE UP ON THIS DREAM AND LOOK FOR A NEW CAREER.