Rules for Girls
 

Easy:
You can only go to the bathroom 3 times a day
You may not orgasm unless you edge once
You may only orgasm 2 times a day

Medium:
You can only go to the bathroom 2 times a day
You may not orgasm unless you edge twice
You may only orgasm once a day
You may not wear panties

Hard:
You can only go to the bathroom once a day
You cannot go to the bathroom in a private bathroom (ex: in a house)
You may not orgasm unless you edge 3 times
You may only orgasm once a day
You may not wear any underwear
You may wear extremely loose clothing

Extreme:
You can only go to the bathroom at one of these times: 2:30 am, 12:00 pm, or 5:00 pm
You may not use a bathroom
You may not wear any underwear
You must wear tight clothes
You must wear skirts at, or above your fingertips
You may not orgasm at all
You must edge at least 5 times a day
You must be naked for at least 4 hours a day (not including sleeping)
You must sleep naked
You must sleep with a dildo in your pussy
You must sleep with a dildo in your mouth
You may not use a blanket while you sleep
You must sleep with your hands tied behind your back

What's the way to choose the level and for how long to follow

You choose the level yourself, and if it doesn't say how long then for 3 months