In a rut
Meaning: in a boring routine, in a bad situation where you do the same things all the time, or where it is impossible to make progress
Example: He seems to be stuck in a rut at the moment. I’m tired of this job. I do the same old thing day in and day out. I’m in a rut.
Example: He seems to be stuck in a rut at the moment. I’m tired of this job. I do the same old thing day in and day out. I’m in a rut.