Catastrophic Fears

Hi all. For the past 3 years, I've been worried about harming others with knives. I've no natural aggressive tendencies. Have no desire to hurt anyone. I've spoken about it to a therapist but nothing appears to work. I've also spoken about it in a support group and while the support makes me feel better, it doesn't last. Ignoring it doesn't work, because I am afraid of a catastrophic result, while analysis leads to confusion and paralysis. Increasingly feel that the best option might be just to do nothing and trust myself, surrender control.

Either way this has caused me an incredible amount of anxiety and restricted my life so much because of my raised anxiety levels. I'm not a naturally anxious person, I'm just lost in my head and it has wrecked a great mind. I'm actually a facilitator in a mental health group and former Psychology student myself.

I can't go on living with this....and I'm afraid I will.....

Any support appreciated.
Thanks
Z

Have you tried exposure therapy? I saw this used on TV with a guy that had a fear similar to yours and his fear lessened after doing certain therapy exercises over and over.