Need some songs to play?

I stopped taking lessons and now I don't know what to do. I can play a few chorded songs like good riddance by green day but not much more. The chords I know are A,C, D, E, F, G, Am, Dm, Em, and few 7th chords. Also i'm ok on some tabs but i need to know a few songs to play so it won't look like a waste of money on my guitar that my parents bought.