Arsenal manager Arsene Wenger says he has given his all to being in charge of the North London club since 1996.
The Frenchman, speaking to Gabriel Clarke, explained that he still eats like a player, won't go on an night out 48 hours before a game and still takes every training session.
"You have to sacrifice your life for this job," Wenger said.
"Every defeat is a scar on your heart that remains for life."
Wenger, who is expected to sign a new contract soon, is hoping for a first trophy win in nine years at Wembley on Saturday.
"The core of the build-up to training is done by me - I wouldn't be in this job if it was just to sit behind a desk.
"You have to prepare to week seven days a week for the whole year. I think I've worked hard in the last nine years than in the first five or six."