You will not receive a W-2 for unemployment. Instead, you will receive a form 1099-G. You do not need to report it, because it is less than the filing threshold. It will do you no good to report it, anyway, because it is not earned income and will not get you the refundable EIC or child tax credit. Workers compensation is also not earned income but workers compensation is not taxable or reportable.
Last year, you had $12,000 of Earned Income. That's what got you the $4300. It's not so much the amount as it is the type of income. This year, you have no earned income, even though you have $6345 of taxable income. You cannot get a refund this year.
However, if the state withhold federal income tax on your unemployment, you will have to file a return to get the withholding refunded to you, even though you are not required to file a return.
