1) Became determined 2) Became resolute 3) Braced for shock 4) Braced oneself 5) Braced oneself for impact 6) Filled with determination 7) Filled with resolution 8) Filled with resolve 9) Girded 10) Inured 11) Made resolute 12) Made strong 13) Made tough 14) Prepared for bad news 15) Prepared for the worst Found on https://www.crosswordclues.com/clue/steeled