Avoidance is the most seductive strategy anxiety offers. It works, in the short term. You avoid the thing that frightens you, and the relief is immediate and real. Of course you avoid it again.

But avoidance has a tax. Every time you avoid something, you send your brain the message: that thing was dangerous. The avoidance becomes evidence. The world shrinks.

I noticed it happening over the space of about eighteen months. I stopped going to busy restaurants, then cafés, then shops. I declined invitations. I restructured my days to minimise public exposure. I told myself I was being practical.

What I was actually doing was letting anxiety be the architect of my life.

The clinical term for this is avoidance behaviour, and it is one of the primary maintaining factors of anxiety disorders. The treatment — exposure — is the most uncomfortable thing I have ever chosen to do.

But every exposure, however small, is a vote you cast against the story that says the world is too dangerous for you.

Gradual, supported, patient exposure. That is how you get your geography back.

It begins with one small step. A coffee shop. A short bus ride. A brief conversation with a stranger. Each one tells your brain: I was here. It was okay. I can be here again.