I had a nervous breakdown a few days ago at work. it made it so I couldn't do my work safely and I just felt so guilty that I couldn't finish my work, that I was burdening others and letting everyone down. My boss said to not feel bad and that my mental and physical wellbeing comes first. If you ever feel like your superior won't acknowledge a mental struggle then I suggest either going to a coworker you trust or just jump the superior latter until you find someone who has authority to help. I love my job and what I do, I'm just having a rough time. In the moment I felt helpless, miserable, angry at myself for not being able to stay professional and productive. I still feel guilty but I will still see this on until the end. I will try my best until the end.