Tum apne ap ko samjhte kia ho? / Tum hote kon ho?

How to say “Tum apne ap ko samjhte kia ho” in English

When you want to say “Tum apne ap ko samjhte kia ho?” (or “Tum hote kon ho?”) in English, the natural, everyday way is “Who do you think you are?”. It fits scolding & anger.