Hello Student

You want to do your 12th standard class preparation in your home if you want to do it without taking classes regularly there will be a problem of doubt clearing of the subjects in this course. Take classes regularly and get preparation systematically with the help of the teachers for your doubt clearing of portions,  prepare perfectly without losing your time. After your exam is over of 12 standard board exam then you can take preparation for jee with trying heart and soul leaving  no stone unturned for success in it.

Hope this helps.