I've been living in the U.S. for 4 years and been married to a us citizen for over 2 years now. I'm trying to get my adjustment of status papers ready but I've never done any tax papers ever in my life, and my suppose hasn't done any in last 3 years either. Both of us are unemployed and making our living of my parents financial helps. My cousin in the U.S. accepted to become a sponsor for us. My question is should I still be worried about our tax papers ?