pick 2 or 3 easy songs with ur teacher, practice hard everyday... but make sure that practice is focussed practice... its pointless just trying to play the pieces straight from begining to end, break them down into smaller more manageable chunks or phrases.
once u have mastered the easier parts of the song, dont practice them as much, focus more on the harder phrases.
use a meteronome to slow these hard bits right down until u get the basics right, then gradually build up pace and then try playing the piece altogether in one go at a slow pace then build it up...
by the time u reach the final pace of the piece, you should more or less know it by heart which will look good on your wedding day...
best of luck and keep trying
Murder For a Jar of Red Rum!
failure 2 prepare, is preparing 2 fail, :(
if you keep doing things the way they've always been done, then you'll keep getting the things you've always got