I used to say it took 90% of my brain to make 10% of my income (flying C-17’s in the Reserves) my airline job took 10% of my brain to make 90% of my income. Until you’ve flown a military mission stuffed with TOT’s, ARCT’s, low level timing, and of course the inevitable screw ups that cause your initial plan to get ****-canned after takeoff, you’ll never understand military flying. Multiply this by 10 for fighter ops and you’ll quickly realize not all pilots are cut out to fly in the military. My IP at UPT summed it up best, he told me one time,

I’m not here to teach you to fly, I’m here to wash your sorry ass out! If you can get through me you’ll earn your wings”.

It’s all about pressure and how well you react to it..flying the jet is a very small part of the equation.