Crazy thinking

Don't think too hard about this and that. Does thinking to the point of crazzzzy ever get anyone anywhere? So far, it doesnt look like it, besides getting that person to the "crazy point." I mean everything you do and say should be thought through. Where would we be if we simply didnt use our heads through life? I mean even those who screw up over and over still think about what they did to some extent.  However, they may screw up and think about it in a positive way due to different opinions and beliefs. Once someone has messed up, sometimes they justify what happened to cater to the life they have "now."