A universe that came from nothing in the big bang will disappear into nothing at the big crunch. Its glorious few zillion years of existence not even a memory.
My number one goal was not getting 'A's' - and I proved it. I was a 'C' student. You have to be ready to learn. If you're not interesting in learning, it doesn't work. As I grew older and wanted to learn and desperately wanted inside information, learning was a lot easier.