Relevant background:
Freshman at large public research university, pursuing Engineering/Applied Mathematics dual major.
Labeled 'gifted' after neuropsych evaluation in Elementary school. Processing speed about 2 standard deviations lower than other subscores, this may have contributed to learning maladaptations that have become evident in University.
K-8: Programs where I got A's and B's without actually making the effort to learn the material. Never a straight-A student, usually got discouraged when my (also 'gifted') peers did stuff more quickly than I could, decided I didn't like what I wasn't good at.
I got a few A's but mostly B's in high school math, where I completed up to Multivariable Calculus, in which I received a B.
This semester I took Linear Algebra & Differential Equations (1 course) which comprised 2 midterms and a final. I got an A on the LA midterm, didn't have much trouble with that. However I got a D on the DE midterm; it turns out I can't integrate worth a damn anymore. My final grade is TBD, but I'm guessing I will earn a B in the class.
The cruel irony is that by the time I realized I enjoyed math I also handicapped myself to learning it.
Question:
Has anyone here been in or witnessed an applicable situation? It feels as if I've dug myself a hole that may not be possible to get out of regarding future math classes.