Dear Vedanti,

Yes definitely you can. If you think you can then there is no doubt, you will do it. Considering the syllabus of Physics of class 11th and 12th, it's vast. You need to complete it thoroughly well. Please follow a disciplined time table for it. And,  also take care of your health and diet as well.

Also, if you need help regarding NCERT solutions related to preparation you may visit-

https://school.careers360.com/ncert/ncert-solutions-class-11-physics

Hope this helps. Feel free to drop any query if you have any doubts.

All the Best!!