Q: So what do I do next?
A: Next you find some songs and try to play them.
Q: That sounds interesting. What songs?
A: The oldies progression songs, for example.
Q: The WHAT songs?
A: The oldies progression. If you paid more attention you would have known.
Q: Oh... Kay. Com'on, what are those?
A: The songs that use the cords: C-Am-F-G and G-Em-C-D. For example:
Q: Okay... That sounds easy enough... And? What else?
A: Well, you should start with those. But if you want, you can find your own. If you really like a song you should try to find the chords for it and play it.