Personal story. I recently quit a job where I was miserable because quitting made me happier. My personal response to my work situation was to reject the negative energy the role and the people around the role was creating in my personal state of mind and to seek other opportunities that would lead to a happier state of mind.
We are in FULL control of our state of mind, but we must be capable of meditation/self-reflection, being able to be vulnerable to oneself and then having the courage to say YES, I am unhappy, and YES, I quit because this will make me happier. We also must be able to live and accept our decision.
A side note, I recently finished listening to
The Book of Joy by Dalia Lama, Desmond Tutu, and Douglas Abrahm. It was a very fitting book to be listening to during my misery at work. The book outlines a theme called the 8 pillars of Joy:
1) Perspective - we must be open to the perspective of others through empathy and compassion
2) Humility - We must be humble and see ourselves as a human being
3) Humor - Humor and laughter helps us shift our mind towards happiness, and it also breaks down conflict and barriers
4) Acceptance - sometimes we must accept the situation and see the silver lining of the situation
5) Forgiveness - Forgiveness releases us from the burden of our grief and anger, but don't accept bad situation and don't forget. I personally agree with this but there is a level of forgiveness that is greater than this when there is repentance - absolution.
6) Gratitude - Having gratitude for life and the beauty of creation helps us understand how precious we are and this helps us regenerate a positive mindset each morning
7) Compassion - Suffering is caused by self-thinking (aka desires), we must love and suffer with our people. Compassion (love) is the most important thing and if we have this we have all other virtues. This was iterated by the Buddha and iterated by Jesus and St. Paul.
Generosity - giving is better than receiving and this is reinforced by natural selection