My 13 yr old DD seemingly has no self control when it comes to rules - whether they be to do with food/technology whatever. She breaks a rule - no phone/tablet/laptop in her bedroom at night time constantly, so we are seemingly in a state of grounding her and extending grounding periods.
She lies to us for no reason, and has done since before she was a teenager, but it seems to be getting worse.
Does anyone have any suggestions as to ideas to either reward or punish her, as nothing either me, or DH do seem to have any effect - we're back at square one before we've even left it!