Self-learning is the best learning.
Reading the content twice or thrice makes an individual cover about 40% of the chapter and is subject to the grasping power and the prior interest as well.
Make a plan first as to what all resources you will use to cover the subject or the chapters. Then freeze this plan. Execute this plan and include the monitoring process. Take the mock test and see at what level of grasping of the chapter have you reached. This will boost your confidence and will help you to lead ahead.
Follow the same concept until you realise that you are now the best fit to practice a reasonable length of the questions.
For example, in the single choice questions. Understand first what question is asking, underline the main key area in the question, then strike the incorrect options and then select the best choice. This practice will help you to grab more opportunities to learn.
Happy Learning.