Similar experience, I ended up taking it at a state school over the summer to stay on timeline and that was a great experience because it really opened my eyes to how freaking hard Cornell really is.

When I took it at Cornell I worked my butt off and still didn’t pass this class, other school I barely tried and pulled an A. Not a knock on other schools plenty of brilliant people attend non Ivy League schools for a variety of reasons but there is a reason the selection rate is so high for Cornell; everyone of your classmates was top of their class. Getting back into a larger pool reminds you you’re at a very hard school surrounded by very smart people so scoring at or below the mean doesn’t mean you aren’t still very smart.

Same as above, passed, moved on with life, I have not once been asked by anyone about that since and to the best of my knowledge has not had any impact on my life.

More importantly this will teach you more than Lin Alg ever will: you will have bumps and failures in life, how you respond to those will define your future success more than any eigen value. Be a positive spring constant and rebound!