i read on a Q&A somewhere on the internet of a similar situation.
here is the link:
http://talk.collegeconfidential.com/financial-aid-scholarships/554284-unemployment-high-efc.html
and here is the specific comment about your situation:
good luck friend. this is why fafsa formula makes no sense. certainly anyone working full time the year before they begin grad school will have a higher income than while they will be attending school the next year. More over, how can anyone actually expect you to be able to contribute 50% of your income for schooling. it is absurd.