自力でfail in spite of one's exertions: 努力{どりょく}にもかかわらず失敗{しっぱい}するmaking one's best exertions: making one's best exertions粉骨砕身紛骨砕身ふんこつさいしんredouble one's exertions: いっそう努力{どりょく}する