I want to take care of every detail, but I really lack the ability.
Tips
usage
Literally 'strength has [a place where it] does not reach'. The 逮 here takes its literary dài reading ('to reach, extend to'), not the colloquial dǎi ('to catch'). A common variant form is 力有未逮 — same meaning, 未 replacing 不.
register
More formal than 做不到 ('can't do it'). Use in writing, speeches, or polite admissions of inadequacy; rarely heard in casual speech.