I sued an ex over a personal loan and won. Almost a year and a half after the judgment in my favor he still hasn't paid the loan. What can i do?

I've also mailed out information subpoenas to banks and cellphone companies trying to track down assets. I even sent one to his mother and grandmother. The only thing I got back is a confirmation of an open Chase bank account with -$3.00 in it. I want to sue him again for the $5000 max for wasting my time. He only owes $1300 for a Macbook he begged me for. Can I re-sue him? I don't have time to run back and forth to court for this foolishness.