Well, did the opposing party file an answer?
It's my understanding that even default judgements require the plaintiff to present the basis of the case to the court.
There are numerous online resources that guide you through what to expect, and your courts website may also have some information.
Typically you provide three copies of any evidence you are submitting, one for the judge, one for the defendant, and one for yourself.
If you need more time, you can request a continuance from the court. Your courts rules of civil procedure should outline what is good cause for a continuance and the timeline to file one.