Anxious and dizzy earlier then got depersonalized and when I got home I slept for 2 hours because I want completely drained. Now dizzy and very anxious again. Is this just anxiety? Nervous and anxious

Ans. Sounds like something happened to you. Yes may be anxiety but medical issues must first be examined. Now you are young however you need a good history of the event then an exam and perhaps lab work. .
Depersonalization. as part of anxiety indicates the need for professional support. Please see a mental health professional. Medication may have its place but learning strategies to manage anxiety will be most helpful. Peace and good health.