He struggled to overcome his vice.

A moral fault or weakness.
Everyone has a vice they try to hide.
Her vice was indulging in too much chocolate.
He admitted his vice during the meeting.
overcome a vice
admit a vice
struggle with a vice
fault
flaw
sin
Smoking is a common vice.

A bad habit or moral failing.
Laziness is a vice that can hold you back.
Greed is often seen as a vice in society.
He struggled to overcome his vices.
moral vice
common vice
personal vice
fault
sin
defect
He will vice the manager while she is on vacation.

To substitute for someone in a position or role.
She will vice the team leader during the conference.
Can you vice me while I take a break?
They asked him to vice the director for the meeting.
vice president
vice chair
vice principal
substitute
stand in
replace