I live with both parents but my mom wants me to only put her income.

You are in a tough situation but don’t commit fraud. It’s not like it was when your mom applied. With both my son’s CSS profile forms they both had to supply IDOC. This was a list of federal tax returns, 1099’s, W-2 etc. You can’t lie. These forms have to be scanned or mailed to the college board who will pass the info onto your college.