It's was the paradox that anxiety creates thought streams, and then being scared of (monitoring and analysing) my busy mind and anxious thoughts that got me in a pickle and made me start worrying about my mind. This is honestly what started this decline, and now I don't know how to get out of it, but I'm frightened of it, and it's been relentless ever since.
This was when my anxiety changed from being frightened to do stuff and go out, to being anxious 24/7. The complicated paradoxical nature of it, is too much for me to get my head around, and no therapist or psychologist has been able to explain it to me.