Here's my situation, my car experiences rough idling, on some instances, let's say when I start it and drive after warming the engine even without an airconditioning, when I apply on the brakes my rpm goes down to 5.5 and my car shivers. When I turn the ac on, it's still the same problem, but when I have driven let say 20 minutes or more, the car doesn't experience it anymore, rpm goes from 7.5 to 8. but when I turn the engine off again and restart, same thing happens, whatcha think gurus?:(

Oh by the way, I already had my tb and iacv cleaned.

Ensure spark plugs (NGK only), rotor, distributor cap, spark plug wires, Ignition Control Module (ICM), and coil are in excellent shape. AutoZone can test the ICM and coil for free.
After replacing any necessary items, check idle rpm.