Spray bottle of water to stay awake

I just went to Tiger and bought a spray bottle for £1, and I've been spraying it on my face to study for longer hours at night.

It's working pretty well and I recommend it.

Is there not enough hours in the day to study?

While working a part time job and maintaining a social life all whilst studying linear algebra and computer science?

I mean, if you can do that in the 16 hours of the day you have then that's fine but for me, I need more time in the day.

You also need time to sleep, and it should be good quality sleep. If you're having to study late into the night then it suggests something is going wrong during the day, and you may have to re evaluate your commitments.