son’s taxes, age/ 1st x filing. have to mail. printed his documents the first x printer fudged. printed again, no instructions where/ what to send to federal vs state?

Delaware, 13yr old has to mail taxes in. I did not get the printed instructions of what and where to send. Now I have all these forms and feel overwhelmed and in need of a picture of what docs to send and the kids return is so basic! Help !