Procrastination or postponing urgent tasks for later can be a sign of depression. However it can also be that either you perceive studies to be
1).boring (it seems to be a burden)
2) too difficult ( I won't be able to learn it)
3) unrewarding (What will I get by studying?)
4) difficulty in concentration ( I lose focus rapidly).
Next Steps
Consult a psychiatrist expert in child guidance
Health Tips
You can do well with counselling at this stage.