Just follow a smart study plan. make a Schedule for your full day and follow it for sometime. you will definitely get good results.
Motivate yourself. watch toppers videos and Interview listen their stories they will give you good ideas about their routine plans.
make yourself positive always. believe in yourself. just remember one thing in your mind. you gonna be successful one day.
focused more on your weak subject. Give Extra time to your toughest subject. It will reduce your fear automatically about the subject.
Now which app should be good for you. everyone have their own opinions. I am learning from egurukul and find the app most useful for me.
The video lectures, Notes and faculties are excellent. I am totally convene with the app.
A very Best of Luck to all Future Doctors.