You can prepare yourself for that job by trying new styles of communication or standing up for yourself, all with a perfect safety net for yourself: quitting and getting out of there. With this new attitude and fearlessness, who knows, you might be able to extract concessions and find that you like the job again. One day, the boss will make a mistake, and then you’ll make your move and outmaneuver them. It will feel so much better than the alternative—whining, bad-mouthing, duplicity, spinelessness.