Hello and Welcome to ‘Ask A Doctor’ service.
I have reviewed your query and here is my advice.
It looks like you are over-burdened with the cares of life & have neglected yourself a lot. You look stressed up and week. You are suggested to eat nutritious food, fruits and veggies and not to stay on water diet. Ill health is one of the leading causes of
depression & you need to visit ER for a general health check up(get all required investigations done). Other causes that can lead to mood swings and depressions are painful/hurting events in life, conflict, death or separation from a loved one. Stay away from addiction if any, drugs also cause depression. Thinning of nails & their becoming brittle, slow hair growth is indication of
calcium deficiency, take vitamin supplements with minerals(iron, zinc,
magnesium) and
folic acid. Do regular exercise & stay happy, avoid events or people who cause your discomfort or hurt, take adequate sleep.
Hope I have answered your query.
Let me know if I can assist you further.