Hello Friend, Good that you are seeking a help. All your symptoms are sign of anxiety. You need to first analyze the reason and root cause for such emotional imbalance. You may be doing a lot of mental chattering about future or past incidents or about exams, career or relationship etc.
You may take a help of counseling support to assess your condition and suitable solutions to recover.
Next Steps
Feel free to reach out to me online through Practo app for further evaluation and recommendation