Hello practo user
You said, you are facing problem of mood fluctuations and also self destructive thoughts.
You are required to meet professional psychologist counselor to make clear your unknown causes behind such acts of yours.
Next Steps
you should take proper sleep, good nutritious healthy diet incl fibrous food, fluids and less of sugary items, less of rice.
you are required to go for PMR along with CBT.
TAKE help!!!