Legal Question in Civil Litigation in California

I don't know what you mean by "discredit". There are ways to challenge a judgment, both in the trial court and in an appellate court. Since I don't know anything about your judgment (Was it a default judgment? A summary judgment? A stipulated judgment? A judgment after trial?, etc.) or even what court it was in, I don't know which options were ever available to you. And since I don't know when the judgment was entered, I can't say whether you still have time to pursue some or all of those options.

I agree with Mr. Hoffman. You are not clear at all.