Because of the heroism to deal with anxiety, I suggest for you to choose classical, romantic, heroic phrases that nevertheless other people will not immediately recognize what is going on:
1. "I need out of here" - the heroic evacuation of British soldiers across the English Channel in World War II = DUNKIRK
2. "I am about to have a panic attack" - in Victorian times, smelling salts to revive faintness were distilled from the antlers of the stag, in Britain known as the hart = HARTSHORN
3. "Topic change, please" - movies can be a distraction when we need a breathing space in life, and the famous phrase from one of the most famous movies of all time = ROSEBUD
Wishing you well.