Courts don't always like pro se, they don't help them or telling them anything they wouldn't tell an attorney, because if you are representing yourself, you should know. May not be friendly, but the way most courts are. The judge isn't wrong, he is telling you what you need, just not how to get it. Do you just need to verify employment? Call and ask for human resources, they should verify, but they may require written requests or something else. If you need proof of wages in order to figure percentages, chances are you will need to subpoena them.