The other thing is, avoid Credit Karma at all costs. You will never get your real FICOs for free, unless its through Barclays or Discover's FICO monitoring. My favorite is myFico.com cause you can see all 3.
For my income I put $5000 on my first secured because that's what I made that summer during a job.
Look up "Common Assets Laws" regarding loopholes for "household income" on apps.