Hi Aalia,
Good to see that you are truely focused.
As you are in class 10th, I think you should get started by joining a foundation course in a good medical entrance coaching institute. This will definitely help you a lot if you along with it work out at home.
The next two years are very important . Dont waste your time. Be sincere and honest to yourself.Join a good school along with a good coaching class.
Start from the basic concepts from day one and as time goes build it up. Be attentive in class, clear your doubts then and there, study consistently.
Make a perfect timetable which suits your school and coaching class schedule. Give more time to your weak subjects. And do implement the study plan everyday.
Sleep is also required. Dont neglect it. Take breaks in between the study hours. Stay calm .
Take atmost care of your health. Health comes first. As it is said, a healthy mind residess in a healthy body.
To sum it up, become a docter you need to work hard , be consistent , passionate, dedicated, have patience and moreover perseverance is required. And, yeah, dont postpone stuff..
ALL THE BEST !!! for your journey...... Dr.