UI, CI, CC, UC are an excellent model of capability of a person at a task. We use that philosophy in the fire service too.
My best analogy is that of a back how or excavator operator. When you first begin, you have to think about where you want the bucket to dig, and you have to think about where your hands must move the levers to make the bucket move. There will be lots of trial and error, as the motion of each lever does not correspond to the bucket.
But over time, you get used to it, and you know where you want the bucket to move, and which hand has to move which way, then you can dig effectively. Then with more time operating the machine, you realize that your mind is controlling the bucket directly. Your body is not moving muscles to move your hands to move the controls to move the bucket, you mind is just moving the bucket. I'll dig a trench, and amuse myself, watching my hands move all over, seemingly disconnected from my mind, while the desired trench appears in the ground in front of me. I think I'm now at the "UC" skill level with my excavator.
The same happens with planes, though at hugely different rates, as planes are so different to each other in these fine points. After more than 3000 hours flying my C 150, I'm "UC", probably to the point of too complacent. When I fly the Caravan, I'm lucky if I can manage "CC" (I think this, as I passed the PPC on type). If I ever got behind the controls of an Airbus, I would be lucky to manage "CI". But I will never again be "UI", as I know what my responsibilities are for operation of an aircraft, so I won't, unless I have a program to assure it is safe.
As for the OP, It just takes time, with the right attitude. Always learn something from your flight, and apply it to your increasing skill. One day, you'll have confirmed you're clear of traffic, in the right airspace, with the right amount of fuel, with an engine in good shape, in the right configuration, and your brain will have flown the plane directly in the mean time, without you having to think about it. Then you're getting to "UC".
A little hint that this is beginning for you will be that in a Cessna, when you lower the flaps your brain lowers the nose a bit to anticipate the pitch change - and your passenger has no sense of a configuration change. That's a first indication of natural skill I look for when flying with new pilots.
Stay with it, it'll come in time....