Yes,you have to study harder to score well and gain knowledge..but also you have to study smarter in a simple and effective way which is not time consuming and doesn't drain you all  out of you ! All the best!! 

1.create clear goals:

Yes,create timetables and plans and think what you have to achieve before 3 months of your exam. Create a weekly and monthly timetables including timings and topics to cover.

2.mark important lines and make notes.

Yeah,make a short crisp notes using sticky notes and mark important lines which teacher specifies.read your books and form new questions out of it.

Don't forget to mark keywords.

3.rectify your mistake.

Perform online quizzes in topics or lessons you are performing.note the mistakes and write the correct answer for it in your notes with question and answers.you can do this even in your unit test where ever you go wrong take you note and write in with correct answers!

4.doubt clarification.

If you are introvert like me watch YouTube tutorials or ask your bestie and clarify don't let your doubts sustain ever for weeks. If you are a extrovert try asking teachers or your tution teacher.

5.practice more.

Yeah you have to pratice problems even it is coding,math ,physics, accountancy or your chemistry problems.

Just know that Ronaldo or messi  doesn't learn football by watching others play!

Practice online or offline for to gain logical thinking and problem solving skills.

5.reach out others.

Try speaking with different level of people to understand or to learn more like teachers or topper in your class ask them what other ways you can use to solve that particular sums.you can also ask them about a concept and understand the way to tackle different problems and concepts.

6.help others .

Yes you will learn everything easing once you reach others because your mind works that way! Start from your friend and people in need. This will definitely help you in revision and revisiting concept and you will definitely get clarified.

7.start your preparation.

Using all this above mentioned stuffs you are going to rock in your exams…the day before your exam take your notes read them and rectify all your mistakes you have done in your unit test and online tests..sleep earlier and eat healthy stay fit this will absolutely boast your confidence and will power..

Yes you did study smartly.if you do all this..best luck for your upcoming exams.

Thankyou