1995 Toyota Corolla Low RPM when I turn on the AC.

I have a new alternator, brand new spark plug cables. new ignition, new header, 2'1/2' exhaust , new blower, new air sensor, new belts, new neutral pulley where the compressor belt goes.

and my car no feel like turning off when I start the ac. I i leave it on without the compressor runs fine, but as soon I turn it on the car vibrate a lot. and when im in a red light I have to pump gas so that way the car continue running on a red light.

I don't want to kill my car with this...