If you hear a hissing sound when you turn on the AC, that’s the sound of your money evaporating. It means you have a large leak. Book an appointment yesterday.
Also, if your air smells like a damp sock or a musty basement, you might have a moldy evaporator. That’s not a refrigerant issue—it’s a biological one. Bring Febreze. And a mechanic.
And finally, if your car’s interior temperature matches the exterior temperature (i.e., “swamp butts for everyone”), stop deluding yourself. The AC isn’t “resting.” It’s deceased.