This is why incentives can play a huge role in combating your teens procrastination

Incentives will give your teen little beacons of light to look towards as they make their way through the otherwise very dark tunnel.
Incentives punctuate study time and make it seem much less daunting.
This is why they work so well. When a task feels daunting and overwhelming, its human nature to try and avoid it for as long as possible.