Hey @Invi
I am so sorry you are going through this right now. It is incredibly exhausting when your own mind feels like a loud, distressing place to be, especially when those existential thoughts start to steal away the things you usually enjoy. Please know that while these thoughts feel loud and powerful, they're not a reflection of who you are or your reality.
When a spiral feels physically impossible to stop, sometimes we have to focus on the body first to give the mind a break.
Try to view the intrusive thoughts not as "messages" to be solved, but rather as background static on a radio that is out of tune. You don't have to argue with the static or make it make sense; you just acknowledge, "That's a loud thought," and try to refocus on a physical task, even if that thought still lingers.
When the thoughts are "screaming," gentle grounding may not be enough. Try holding an ice cube in your hand until it melts, or consider buying sour lollies and popping one in your mouth. These intense sensations can force your brain to pivot from the abstract "existential" spiral back into your body.
Since you feel you can't enjoy your hobbies, try engaging with them in very small, 3-minute bursts without the pressure to "enjoy" them. Sometimes just the act of doing a familiar motion, like sketching, gaming, or dancing, can provide a bit of grounding.
I will say, from my own experience, it is so tempting to search for answers when we feel scared, but often "reassurance seeking" on Google actually feeds the spiral by keeping our brains focused on the intrusive theme. Try to set a "no-search" window for a few hours to let your nervous system settle down.
You have survived every spiral you've had so far, and even though this one feels so different and louder, you are still here, and I want you to know that I am so proud of you!
Keep breathing through the next 10 minutes, we're all here for you.