Your brain loops on problems because it’s afraid you’ll forget them.
You are a different person after eight hours of rest. The problem won't necessarily disappear, but your capacity to handle it will double.
Everything looks worse under artificial light. Between midnight and 4:00 AM, your brain is low on dopamine and high on cortisol.
If you are spiraling, your body is likely in a state of high arousal. You need to physically reset your nervous system.