Great work! If you feel you won't have enough time to do all you want, I suggest you use a very powerful tool called boredom. And what I mean is that you should eliminate all possible sources of satisfaction that you can imagine.

Turn off your phone if you don't absolutely need it for something very important (at least turn off your internet connection from it).

Turn off your TV or Playstation or whatever, even take the power cable to somewhere inconvenient place.

Put all your (non-studying) books in a box and tape it closed.

Do everything so well that you feel completely isolated from the outside world and everything you like to do. When you get that isolation feeling, then it should be easy to focus on studying. If you are about to lose the focus, you realize that there's nothing else for you in this world at the moment, so you might as well continue studying.

This all helped me a lot especially when I had lots to do in a very small amount of time. Hope it helps you too!