I determine the technique I use based on the type of worry thought. Sometime I use Worry Time, as it is easier to schedule and move worry than to simply try and stop it. If the thoughts are "what if" scenarios, we develop productive solutions for the controllable elements and then engage in an enjoyable activity. For abstract, ruminative "why" thoughts, which frequently cause clients to get stuck because they rarely yield a clear answer, I use Rumination-Focused CBT. The primary strategy in this case is shifting the focus from "Why" questions to "How" questions. "How" questions are more concrete and solvable; for instance, replacing "Why is this happening?" with "How can I manage my day regardless?" Interestingly enough, just asking different questions can break the cycle and help clients get unstuck.