Your stay exceeded 12 months, so you cannot claiming living expenses.
Since there is NO tax treaty, you cannot claim any income tax exemption.
You need to file Forms 1040NR, 3903 (to claim moving expenses from Argentina to the U.S.) and 8843 (to validate your J-1 status).
You CANNOT claim either your wife or daughter as a dependent.
You WERE exempt from FICA (Social Security and Medicare) taxes. If these taxes were withheld improperly, you may need to submit Form 843 and 8316 to get them refunded to you.
If you need professional help to file, contact me at
[email protected].