Nah, almost all of you people think wrong so I don't think it is such a bad idea to stop thinking at all... Looking at how humans can't ONLY think...
And as I said, what's so bad in overthinking? What do you even mean by overthinking? Do you concentrate on the most unlikely possibility of them all? Or overthinking is you considering all the possibilities over the most likely one? In any way, how can it hurt your friends? I don't have friends and I don't care whether I hurt someone or not (and I'm actually happy if I do) so I may not understand clearly but...
Go sleeping then, infamous ;p