Hello.. Well at your age it's common to face it..I want to know how this symptoms started and triggering factors...You also need to talk to parents, or  your close relative or friend so that you can feel better...Thank you

Since when our have all those issues. Have you ever tried to share your problems to a psychologist. If possible consult one.

Loss of interest, decreased concentration and attention, feeling low and disturbed sleep or appetite are some of the signs of depression. Consult a psychiatrist who will assess you in detail. If you are feeling suicidal or hopeless, seek professional help immediately. Try some relaxation techniques like yoga, meditation and deep breathing. Indulge in hobbies. Spend time with people close to you.