Hello, The description provided by you here of negative self esteem,  feeling lonely, excessive thinking, impairment in sleep, poor concentration, fatigue and weekness, and ideas of self harm all point towards a probable depressive episode. Hence I would strongly suggest and urge you to seek a consultation with a psychiatrist near you for comprehensive assessment and treatment. I would also like to say that self harm is not a solution, and it is indeed very good that you have sought assistance for your problems on this platform. Please continue to seek help and your quest for your health. Tell your friends and family about your condition, share your concerns and experiences. Please consult with a psychiatrist at the earliest, so as to relieve your distress at the earliest. Please be well assured that your condition can be helped with proper guidance and treatment. Best wishes for your health and future. Regards Delhi Mind Clinic