Should be easy. Front caliper are pressed to collapse. Rear are twist ALL THE WAY to retract.

After you finish the rears, with the car jackked up on both rears, turn car on, give a very firm press on the brake pedal.

turn car off, pull emergency cable to 2-3 clicks and go t the rear to check that the rear wheels are draging. If they are not, you will need to retract the caliper again until you get it right.

Pay close attention to the rear, test the emergency brake cable when done.