Cityfoghorn's journey

I was laid off from my job in California on May 29 and received three weeks of severance pay on June 2. I filed for unemployment on June 1, but when I was certifying my claim on June 14, I completely forgot to report the severance pay. I only remembered after a coworker, who was also laid off, asked if I had reported it. Now I'm worried about whether I should report the severance in my next certification period and if I might get into trouble for not mentioning it earlier. I've heard that it could affect my benefits, depending on the amount and how it's allocated. I'm feeling anxious about this situation.