Im preparing without books

I am doing my prep without any paid courses or any books and it has been going well. The only books that do matter are the ones in which you solve questions and sets writing down by pen.

you can use all the material here on Percentyl. Yes PW online coaching would also help

Well online there are so many resources available. If you make good use of these resources then you're good. Because in CAT practice is more important than theoretical knowledge. So keep practicing and use all the resources available to the fullest.