Your response simply reinforces my comments. You do not need to nor should judge / sense airspeed, particularly when below 100’ AGL, the effect of wind has resulted in many low level stalls by mistaking ground speed as airspeed.
You need to know the appropriate attitudes and power settings for various configurations and phases of flight. If they are set the airspeed will follow, no judgement required. I have logged over 6500 hours of flight instruction in tandem seating aeroplanes without ready access to flight instruments. This taught me to rely on attitude and airspeed, which I had been taught but really only made sense when that’s all I had. Students would often look around and ask where my ASI, ALT, Tacho were hidden as I was able to fly so accurately - nothing to with any special skills, just because I was flying visually attitude and setting power by ear. Until you are actively taught these skills you won’t develop them.
You should be setting the appropriate power and attitude for the phase of flight, allow them to take effect, trim, then check airspeed.
I’ll guarantee your backup ASI uses a common pitot / static source, so will only display same invalid reading. Most errors are the caused by a fault in the pitot / static system.