Don't be the one whose bitterness, smallness, and insecurities spill over into other peoples lives. Don't ever let others make you feel like a victim. Sensitivity and a big heart that is easily broken does not equal victim!
A job is a job. It's a way to pay for a living, but that's it. Don't let it define your happiness. You work to live, not live to work. Work on what makes you happy. (I love my job, but this is a good reminder that it's not the only thing that matters).