I just count my breaths to 10 to stop the endless thoughts from coming up. 1 while breathing-in, 1 while breathing out, 2 - in, 2 - out, 3, 3, 4, 4, and so on u

I just count my breaths to 10 to stop the endless thoughts from coming up. 1 while breathing-in, 1 while breathing out, 2 - in, 2 - out, 3, 3, 4, 4, and so on until I reach 10, then I start over from 1 again. If you do this for long enough, at some point your brain will learn to do this automatically. If that's the case. Increase the difficulty. Count to to 10 then back to 1 then back to 10, etc... Or count in multiple languages. This helps me to put myself to sleep (to stop endless train of thoughts) all the time. Of course, sometimes, you need to think things through. You need to learn to recognise when this need is present and give yourself into the reflection. What's so good about this technique, is that even when I reflect on stuff, I know that whenever I notice that the reflection is no longer meaningful, I can just switch the thinking off anytime by using the technique... Hope this helps.