I felt that during college. Suddenly I couldn't hold enough abstract terms or variables at once to be able to reflect. It slowed me down near zero, but weirdly

I felt that during college. Suddenly I couldn't hold enough abstract terms or variables at once to be able to reflect. It slowed me down near zero, but weirdly, if you keep trying, your brain may evolve some new abilities and maybe as important.. keep feeling joy about learning even if slowly. I wonder how one can raise this aspect of thinking.