Hello!

If you really want to do it,that is, if you are really passionate about it and you are willing to work hard to achieve your goal then you can definitely achieve it. First, you will have to understand the basic concepts which is the foundation and for that you will need to work consistently. Don't skip your study schedule at all. Ask the questions from your teachers or mentors until and unless you get your queries cleared. If you feel that you need help, consider joining Coaching meant for the preparation of JEE. Things will get tough at times, but don't give up. Also, have a positive mindset. Don't think about failure.

All the best!