Mild anxiety is necessary as it makes us more focus and helps to plan our life, but when we misjudge situations the anxiety may increase affecting our performance. There are various ways of dealing with anxiety like doing regular exercise, not postponing work, getting prepared before any event, practicing your work, singing songs etc depending upon the type of anxiety. You may need meds initially to decrease the fear of getting anxiety attack and with psychotherapy u will be able to handel the situations in better way in future. Consult a professional and seek advice and plan your day.
All the best