No problem! :)

I know it's hard in the beginning to decipher what's right and what's wrong, but in the end, just stop and listen, and try to hear what YOU think sounds good.

A regular G major chord will always consist of the notes G, B, and D, but you play it differently depending on the style of music. A ska song, a rock song, a folk song and a funk song can all contain G chords, but they will probably be played in different ways... down in the open position, higher up the neck etc.