Work is love made visible. And if you can't work with love but only with distaste, it is better that you should leave your work and sit at the gate of the temple and take alms of the people who work with joy.
Never continue in a job you don't enjoy. If you're happy in what you're doing, you'll like yourself, you'll have inner peace. And if you have that, along with physical health, you will have had more success than you could possibly have imagined.
Desire! That's the one secret of every man's career. Not education. Not being born with hidden talents. Desire.
Pope John XXIII
Consult not your fears but your hopes and your dreams. Think not about your frustrations, but about your unfulfilled potential. Concern yourself not with what you tried and failed in, but with what it is still possible for you to do.
If you wish to achieve worthwhile things in your personal and career life, you must become a worthwhile person in your own self-development.
I think everyone should experience defeat at least once during their career. You learn a lot from it.