[twomoretime]

I'm going to buck the trend here and say that if intelligence is approximately normally distributed, there will always be some proportion of the population that doesn't meet the minimum in the necessary dimensions.

The point is not to demoralize someone, but to prevent them from spending a lifetime of angst and anguish in a field that is not totally beyond their grasp but always just far enough above their head to keep them questioning themselves constantly.

OP, it sounds like you've given this a shot and it didn't quite stick. Maybe it's time to try something else. For what it's worth, I felt the same for much of my education, studying physics and passing curved tests but never really feeling like I understood mathematics - and it's a terrible feeling to be somewhere where everyone presumes that anyone is capable of anything while you're here struggling.

I did manage to complete my degree but I ended up specializing in something where I could leverage the mathematical intuition I developed without having to fake my way through actual math, and I'm fairly successful. Perhaps you can do something similar.

The way the entire thread bends over backwards to find something "wrong" with OP, some external, fixable explanation, is counterproductive. These sorts of expectations are good to have but if they are not grounded in the reality of individual ability, they can lead to serious mental health problems.