As I am a student of medical profession. So, there're a lot of thoughts that runs in my mind daily but can you imagine that sometimes I feel like I am nothing without consistancy.

You have got to change the way you think. It is a whole determining factor of where you go in life. We are how we think. You can not make a world but you can make your world.
If you stay in a comfortable zone, that's where you'll fail. Success is not a comfortable procedure. Start putting some pressure on your self. You cannot do normal things and expect extraordinary results.

This is how nature works.