Vous avez cherché: whatever you do, do it to the best of your ab... (Anglais - Latin)

what i am able to do i do to the best of my ability
quod possum perficio

whatever you do do it with all your whole heartht
whatever you do do with your whole heart

whatever you do, do it wise with your eyes on the prize.
quidquid agis, prudenter agas et respice finem.

whatever you do, do it with foresight, focusing on the result.
quidquid agis, prudenter agas et respice finem.

whatever you do, do it wisely, and don't forget about the end.
quidquid agis, prudenter agas et respice finem.

and whatsoever ye do, do it heartily, as to the lord, and not unto men;
quodcumque facitis ex animo operamini sicut domino et non hominibu

whatever you do, do it wisely, bravely, and from the heart. (the motto of king edward vi school, chelmsford, uk, founded in 1551.)
quicquid agas sapiens age fortiter ex animoque

you only sustain and protect this infirmity of your health, as you do, so that you may go to our countryside and run to the ground with me in a litter.
haec ad te pluribus verbis scripsi quam soleo, non oti abundantia sed amoris erga te, quod me quadam epistula subinvitaras, si memoria tenes, ut ad te aliquid eius modi scriberem, quominus te praetermisisse ludos paeniteret.