Additional strategies to consider that may be helpful to you in working through and coping with anxiety provoking situations:

Managing your anxiety effectively – it can really help to engage with breathing exercises and/or activity which is breathing focussed like Pilates/yoga.
Would an app on your phone help you to practice calming your breathing when feeling anxious but also help you manage your worries with other strategies *see my separate handout on Apps for worry/anxiety
Practice time out in your day to look after you, wellbeing activities and self-care are really important for managing anxiety.
Sleep hygiene and routine, also regular meals, watching caffeine intake, lots of fluids and exercise.
Journaling – try instead of focussing on negative thoughts/events try to write down what went well and what positive outcomes came from your day.
Promote and engage with self-compassionate positive statements, nurture your inner confidence and praise yourself with kind encouraging words.
Take a challenging situation that you did engage with and write down all the positive outcomes that came from this, these may be small but still significant.