I am having job-related anxiety, need advice please?

Are your issues : Because of how you deal with stress in general? Or is this something specific to this job? If is the former - than working on yourself makes a lot of sense. Consider cognitive behavioral therapy. If it is the later - are there changes that can be made at work that would this job more tolerable for you? Is this job a bad fit for you? If the later - should you remain at this job?

Anxiety: Talk with people close to you about your concerns to try to uncover the roots of your anxiety, you need to find out if it is job related or specific to your personality. Best.