When you feel completely overwhelmed, like there are too many thoughts in your head and you don't know what to do to find peace... try this:
First, simply acknowledge what's happening to you. You are feeling overwhelmed, stressed, or agitated. That's completely okay. We all feel this way from time to time.
Next, acknowledge the content of your thoughts themselves. Remember: they're just thoughts. They don't define you, they are not more powerful than you, and they do not dictate what happens in your life. They are just fragments and representations of information bouncing around inside of your brain.
Then, write your thoughts down down. It's often very difficult to find clarity when they're so busy making so much noise. Collect all of the thoughts and bring them outside of your brain and onto paper. Here, you can analyze them, organize them, challenge them, or clarify them.
Finally, talk to someone about them. When you share your thoughts with another, you once again are helping yourself to get the distance you need. If you don't have someone to talk to that you trust, it can be worth exploring professional options or finding another way to process them outwardly, whether that's through movement, speaking out loud, or making a piece of art.