Hello. Sometimes the negative aspects of life colour our perspective so that we are unable to see the good that is happening around us. Write out a list of your achievements, however small or insignificant they seem to you. Say positive affirmation statements to yourself - i am a success, i am beautiful, i am loved- even if you don't believe in them at first. See how a change in perspective changes your emotions. If not then you may need to see a psychologist.

Hi , There is voice inside the head that keeps saying something or other . Acknowledge & accept that it is jus one of the thousand thoughts that run in ur head. Don't give significance to it and do what u want to . Accept that u feel sad and keep doing ur physical activity , work etc.