Count your tasks from your waking up to sleep time and divide your 24 hour according to task. See in how much time you can complete the task. and implement it with integrity and see did you able to complete that task in your decided time.
Sometimes what happens when we sit for our complete the task and the struck suddenly that need to complete that work also. So, in that time notedown that work and do it after accomplished your task. And if it is mandatory then note how much time you devote to your task and then complete it after that.