Still a lot of time is left for JEE. Getting confused at this time will waste your time. Now you have prepared for CBSE. So your basics are clear it will be easier for you to crack IIT.It is good that you have started doing HC Verma. Now try to cover it maximum and other IIT books. I know many students who cracked IIT in this last session preparation you can also do the same. Such type of confusion happens when you are preparing for highly competitive exam.Just relax.
All the best
Please feel free to post as many doubts on our discussion forum as you can. We are all IITians and here to help you in your IIT JEE preparation.
Now you can win exciting gifts by answering the questions on Discussion Forum. So help discuss any query on askiitians forum and become an Elite Expert League askiitian.