firstly if you have anything in your mind that is bothering you or making u disturbed you need to take a step away from it to gain complete and happy concentration and you'll be motivated automatically.

Please keep on reffering more books(refer h c verma) and e-learning is very essential for eg. if u have a doubt refer through internet coz internet makes many things and gear up from your base level (from grade 6 books),indepth conceptual learing is important in learning physics thats it enjoy physics!!!!

• You should follow a proper timetable and give some more time to physics than other subjects.
• Don't waste your time on social media.
• Start with your Ncert book and read it's concepts and use it to apply in the questions.
• Make formulas list and try to practice numericals problems from ncert book as much as you can.
• Make proper notes and revise it at the time of exam.
• Write and practice conceptual problems and numericals.
• Find out the techniques/methods through which a specific problem can be solved.
• Analyse your preparation everyday and try to get better and better.
• Don't loose your confidence and be motivated and calm.
• Refer to previous years questions of class 11th and solve it .By this you will get an idea of how the questions are asked in exam.
• Be patient.