Mismanagement from Regional/District offices trickle down problems to the local station managers, who then are pressured to pressure the letter carriers they manage. Policies change all the time, large shifts in workloads also skew towards unrealistic expectations. Fascinating that it all gets done, but still a lot of kinks in the system!
The job is different for everyone it all depends on how bad you want things. I love working and this is a great job for hard working people like me. You go to work and do your job you should have no problems.