Going to an engineering college where the demographic was 99% male, I guess I was determined to finish alone ;). But honestly 100% agreed with your point, even with online dating, a lot of people end up dating people they know or people they meet through a common friend.
Having a 15 to 30 minutes nap when my brains is mushy usually allow me to reset and get my mind in a more energized state, might be worth trying for you too.