As Einstein once said, "Do not worry about your difficulties in Mathematics. I can assure you mine are still greater."
He also said: "Randomness is G-d's way of staying anonymous*." On that note, I present you with the following article from Cracket.com: "The Five Most Mind-Blowing Coincidences that Cracked.com Could Find in a Day of Doing Research".
* He got that from Tosfos on Bava Metzia. Everyone knows that Einstein was a fan of Tosfos when he wasn't busy patenting designs for refrigerators. More on Einstein: