Pick Physics or Maths subjects in the morning and solve numerical with a fresh mind. Then, study Chemistry.
2
Practise mock tests chapter-wise or subject-wise as per your interest and strengths.
3
One of the most important aspects is time management. Spending too much time on difficult questions may leave you with little time to address the easy ones.
4
Once a concept is clear, plan a time for revision to grasp the topic.