You should learn the major chords first and a scale or two. Practice strumming these chords and changing from one chord to another. You would be suprised how many songs are made from three or four chords. Practice, Practice, Practice. Learning to play well takes time so if you get frustrated take a break.
I am a constant evolving music machine. Oh Man, I just forgot what I was playing. Oh well, on to the next song. :rolleyes: