Welcome and good luck on your journey, unfortunately not many can actively help you with your goal but some advice can be given by just about anyone who spent some time in this practice. I myself can help very little but I`ll offer what little knowledge I have on subject(mostly because I study pure spiritual manipulation with runes and seals as either mediums or wards)but a common advice would be to find your own meditation(one that makes your energy react the most) and learn how to branch your mind(warning this skill hurts like hell while perfecting and could trigger a seizure if u suffer from epilepsy), but its worth it when you realize you can focus on more things effectively or focus more energy on one objective from multiple angles(helps with studying and memory as well hey may be a bit lazy)
Either way here is instruction:
-once you find most effective way to meditate for you(well that is actually step one)
-while meditating enclose you`r mind in a bubble than and isolate it from the rest of you(rather tricky)
-once you complete previous step start to branch your mind(method of visualization may be different for you but this is the one I used), try with creating a second bubble that you connect to first one(give them some markings it will make things easier later),copy your brain processes in smaller bubble
-give it a specific function like your exam schedule so it can grow to actually be useful
-last step is actually previous one make your second mind grow(some form of fail safe should be placed but it`s not necessary in most cases if problems start just remove the link)after it grew to your satisfaction, just go through the paces again for another.
-find a way to keep them all connected(some organic structure/formation would be ideal, like spider web or a tree)