Dear aspirant,

Hope you are doing well. As per your query first of all for clearing your concept of physics you should have a very clear knowledge of the basic chapters of physics. Study and clear the concepts of those first, if facing problems you can take help from your teachers, friends, YouTube, books etc. Then you should always believe in self study. Also solving problems is a great way of understanding. Solve as many problems as you can. Also refer to good support books while studying will help you a lot. Hope you find this helpful. Thank you.

Dear student,

If you really want to build the strong concepts in physics, then you must dive into the ocean of basics. Without a proper knowledge of base one cannot master physics.
Because physics require a lot of real life imagination as well as knowledge of where to apply. Go to the root of every topics. Even small topic can make you uncomfortable, if you have not studied. So, go through the basic definition, understand that concept by imagining in real life. And solve many number of problems and all of different varieties.

Also for good conceptual knowledge and making a good base use cengage physics books series.