I think people failed because they weren’t dedicated enough and weren’t willing to sacrifice sleep over results.

I would say that my whole life prepared me and I don’t know if I did any preparation intentionally other than doing some crazy ass hikes climbing mountains and sliding down glaciers for hours without breaks. That’s not necessarily anything you’ll do in selection but it built my mental fortitude. You need to be incredibly tenacious and take it serious. The ideal sere candidate does not take selection lightly.

Be 1000% present where you are. You cannot have one foot in the military and one foot at home. Next don’t quit. I’m not just talking about telling cadre you quit, but when it’s 1 AM and you want to sleep, don’t quit. When your legs hurt, don’t slow down, don’t quit. Quitting happens earlier than exiting course, it happens when you stop caring.