I don't know if u r in depression disorder called anhedonia. It is a major depression symptom when you can't feel pleasure from enjoyable activities. Lack of happy hormone like dopamine in ur body has great effect to. Reasons could be: you do the same routine everyday and get bored. You frequently get angry. Poor health and diet. * To reduce the feeling: sleep well Use the power of internet to get interesting stuff(u said u lost intrest over ur phone, but endemnim bleh tetekem). Surround yourself by positive ppl. Have friends and love ones. Avoid drug and alcohol. Avoid perfectionism and be more like to the society.