Drive the same with or without someone in the passenger seat. The road doesn’t know who’s watching.

Behaviour that changes with an audience was never really yours, it was a performance with a variable crowd. The road is indifferent to who is sitting beside you, and physics does not adjust for the fact that nobody would have known. Habits formed alone are the ones running the car on a bad night.

Next time you are alone in it, pick the one thing you usually let slide when nobody can see: the phone, the speed on the empty stretch, the full stop at the junction. Do it properly for a week and it stops requiring a decision.