In nursing the very old saying goes “nurses eat their young” unfortunately it was true when I was a new nurse and it is still true today. As the other posts stated you will need to grow a thicker skin and use this experience as something to learn from.
I was so rattled by the charge nurse I took advantage of employee assistance (EAP) and it helped so much. I have been a nurse over 30 years and I can reminder how I felt like it was yesterday. I treat everyone with respect no matter what position they hold. You are not alone and there are so many kind, smart, caring, skilled nurses out there that you will learn from. The burnout shells you encounter are unhappy and often sad because they believe they have no other options.
Stay true to your self, your values and your oath. Best to you. Mary