In project management, there is the concept of having a buffer and buffered budget.
Depending on methodologies, you need to account for any unexpected expenses by adding a percentage buffer on top of the expect cost of the project.
Guess what it works in the real life too.
Make buffer to whatever you are doing. Create fake deadlines, try to push things sooner and see what will happen?
Maybe you will discover that suddenly you have more free time since the things you procrastinated are already done.
The scary thing is now that you have all this free time, what would you do with it?