This low emotional feeling can be due to negative view about self, other and future. One has to work on thoughts that are leading to such behaviours. There is also procrastination what you are saying laziness. Behavioural interventions and strategy will be helpful with proper action plan regarding this. With help you can create a more vibrant future which will lead to better actions.

What were your interests earlier?!!! Are you unhappy about those results, which are not what you expected or wanted?!! If so, then I think  you need to change the process only, not the GOAL itself.

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.

Hi dear It requires further evaluation for the cause behind your symptoms for better management . You don't need to suffer. just step out and get treatment done.