Hello,

If you study now 11 th then you can appear jee main exam next coming year i.e. 2021. Even being in 12th standard you can appear for jee main for both the january and april session. Prepare yourself. The syllabus contains the subjects of physics,chemistry and maths from 11th and 12th standard.

You have enough time to prepare so what you will study hence forth keep learning them and solve as much as problems you can and keep practicing the numericals and concept of class 11th even when you are studying 12th subjects.

Hope it helps!