Hi oot.
It is definitely a test. But not nearly the tests Avraham Avinu went through, if that contrast helps.
It is possible to find a new job, and maybe look while are you still working.
It is also possible to find some meaning or challenge in the negative things about your job.
All in all, if someone dislikes their job a great deal, they will not be happy in it and that can, chas veshalom, affect their entire being.
Look for a new job and daven for help in finding one.
Hatzlacha and may you find the right job you are designated for and feel happy, productive in it, and compensated handsomely.