FAFSA efc is not what you get at CSU. You are not eligible for Pell grant, so I’m not sure what ‘combined’ grants would be. Did CSU mentor indicate you would get calgrant for actual income and family count? And what other grants? Max Cal Grant for CSU is 5,472.
At CSU and UC schools, this Cal Grant covers systemwide fees up to $5,472 and $12,192 respectively