Could you tell me why my job is making me anxious, stressed, can't sleep? advice?

Psychotherapy: No one can give you an explanation without a lot more information about what exactly is going on, what it means to you, and how it is affecting you. It sounds like you are confused by the reactions you are having and would like to better understand (and overcome) them. That is what psychotherapy is for. Talk to a mental health professional and get some meaningful answers.