You know, you may be able to help change the way your youth group is, but you may first need to get fed and refreshed. I think it would be a good idea to attend a youth group that feeds and teaches for a while before trying to change the group you're currently in. Also, it is the responsibility of your youth pastor to bring relevant, spiritually challenging lessons to the group. He/she may need a wake up call that they are falling short. Just my two cents worth.