Your history seems to point towards Mixed Depression and Anxiety Disorder and it would be best if we started treatment. It would help a lot.
Next Steps
Consult a Psychiatrist at the earliest and you must seek Psychotherapy from a Clinical Psychologist if the doctor doesn't suggest it himself/ herself
Health Tips
Meanwhile, try to go for deep breathing exercises, Yoga and Pranayam, meditation, have lots of water, do exercises and try Journaling as well!