If you can’t find your immediate relatives US naturalization certificate number you can provide their US passport number as an alternative to their proof of citizenship.
If you don’t think anyone is going to remember with absolute certainty that you ate a magic mushroom 4 years ago at a party, just say no one knows or is going to remember my magic mushroom consumption.
If you are friends with a married couple you list each individual for different verifies.
Learn the meaning of self employment.
Your employer is the company that pays your pacychecke