If your thought becomes overwhelming. This is one of the tool you can use. You can look up The Work of Byron Katie on youtube as well to see it in action.
The Work is meditation. It’s about opening to your heart, not about trying to change your thoughts. Ask the questions, then go inside and wait for the deeper answers to surface.
1. Is it true? (Yes or no. If no, move to 3.)
2. Can you absolutely know that it’s true? (Yes or no.)
3. How do you react, what happens, when you believe that thought?
4. Who would you be without the thought?