I imagine, now that you have one leg to stand on experience wise, and your dreams aren't all nurse nightmares, you have paused and looked around you. It sounds like you might have noticed that your surroundings aren't great?
Burnout is a umbrella term that covers a great deal of ground. You mentioned that the nursing aspect of your job is good and that your coworkers and management aren't, but you aren't really spelling
it out. What is the problem?
Burnout can lead to many different behavioral changes. To name a few: distancing ( yourself from your patients, staff, family), anger, guilt, hostility, exhaustion, drug/etoh abuse, headaches, absenteeism, and irritability.
If you indeed are feeling some of those behaviors, perhaps you are starting to burnout, but I get the impression you just have issues with the people you work with, yes?