I am in the UK. We drive on the left and sit on the right.
If you insist on living somewhere foreign, where they do heathen things like painting taxis yellow instead of black, then you'll have to swap left-for-right and right-for-left.
When I say "left hand down", that means "turn the steering wheel anticlockwise". "Right hand down" means "turn the steering wheel clockwise", and "full lock" means "turn the steering wheel as far as you can.
Step 1: Setting up your car.
Your car has mirrors. You need them.
Make sure that both your wing mirrors are adjusted so that you can just see your own car in them. Adjust the rear-view mirror so that your rear window appears central to the image.