I take self discipline seriously. I make rules for myself and don't follow them 100% of the time, but when I do, I'm much more content.
Don't read a book until you've read your Bible
Work a little, play a little. In that order
No sitting at the end of the day, until all the rooms are picked up
Stretch before getting out of bed
If you eat healthy for your 3 meals a day, eat anything else you want, just in the appropriate quantity
Do not go over a certain weight
Call your parents, then your friends
Make a list, then use your brain for other things
Listen to your instincts, if something seems weird, extract yourself.
Take note of what you listen to, watch, read and talk about. These things say a lot about you.