Hello,

Yes you can crack by your own dear. So for this reason you have to study a lots.

1. First thing you have to collect the examination syllabus soft copy and hard copy, hard copy helps you to mark the completed chapter and it will very motivating thing by own.
2. You have to study daily basis on routine like when you are studying mathematics, chemistry and physics.
3. You can complete your tough chapter at first then you can revise your easy chapter.
4. You can prepare from previous years question papers.
5. You can give online mock test after completing your one chapter. It will helpful for you because you know what's your preparation going on. Also you can give full syllabus mock test.

I'll provide you a link below you can check it for this online mock test from your home

https://learn.careers360.com/test-series-jee-main-april/?utm_source=google-search&utm_medium=paid&utm_campaign=jee-test-series-2021&gclid=CjwKCAjwq7aGBhADEiwA6uGZpz_ElS1p-5se2IO5MOFgxpoWB3xgcwO8gytIGYJga5UQi51V4rdb6RoCnagQAvD_BwE

All the best .

Hey aspirant, I hope you are doing well. :)

I would like to suggest and share the reality that JEE mains or any such competitive exam requires self study along with proper guidance from a professional. It isn't like that self study won't help you or result you something fruitful. But, along with proper training and coaching it could be more beneficial.

I hope my suggestion helps. :)

All the best.