OP, please heed this. Make an appointment with a professional ASAP. If you’re not able to do so or not able to get an appointment soon, please talk to someone you trust and ask them to keep an eye out/check in on you to make sure these feelings of depersonalization don’t spiral into something bigger and/or unsafe. If needed, please visit a psychiatric ER.

Some mental disorders that present this way are theorized to be degenerative, and prolonged/multiple episodes of psychosis make it harder to treat and manage. Ideally getting them under control before a first full psychotic episode can even come to head.