I need help filing my state taxes. i have to efile in new york state but it won't let me.

i already selected file by mail.   but when i printed out the paperwork, it told me that NY state requires e-file.  I then went back and tried to "amend" my state return but i do not know what i am doing.  I don't think i was supposed to amend.   Now i don't know where to go to efile.  please help!!