Hey Zahida,

You can prepare from home if your family member do not ask you for any work. You have to study day and night. So also no one should disturb you even your friends and family members for one year only.

Do you know the important topics , chapters , question and have you proper note  etc then you can prepare from home.

Other wise you can do a coaching they will teach you from begining that is not good for you because i think you have good knowledge of besics. They will give you proper notes and clear your concept.

If you have already covered your entire syllabus then join a test series and you can work home.

Good luck!