One of the facts of life is the desire of 20 year olds not to conform.
Another fact of life is that it's a rough ride.
The reason your parents thank God for the food on the table is because there wasn't always food on the table. When life gets tough, only God/Jesus/Allah/Buddah/.../etc/... can pick you up and put you back on the straight & narrow.
You don't know this yet of course [img]style_emoticons/<#EMO_DIR#>/rolleyes.gif[/img] it's part of growing up don't worry [img]style_emoticons/<#EMO_DIR#>/ohmy.gif[/img]