Hello
Sorry to hear you are facing issues.
Low mood, coupled with low energy, lack of concentration, anger outbursts, sleep and appetite issues and suicidal ideas point towards depression.
However, there are many causes of the same. Biological, psychological and social.
Ideal would be to jot down your issues and speak with a mental health specialist.
Next Steps
Start with speaking to a loved one. If you still feel lost, talk to a mental health specialists like psychiatrist.
Health Tips
Keep and maintain daily routine.