Everyone should study. However, the part that students and preparatory students find difficult while studying is that they do not know how to study. This is because there are many different ways to study in the world, and each one is very different.
The most basic of study is to 'read' related books in order to understand the subject (study). Sometimes, concepts that are not properly organized in the mind by reading such as mathematical formulas or grammar should be solved in a notebook to get organized and understood.
Ultimately, learning can be seen as a process of realizing and learning by doing it on your own.