Mathematics
I was a creative wolf. Kind of romantic poet. Thus I hated mathematics without reason. I barely used to pass till grade 8. Getting passing marks in math was an achievement.
Due to sibling rivalry I started to take mathematics seriously. Soon in grade 10, I scored 95/100, an unheard number for me!
Once a topper , always a topper. I was math topper though!
I scored twin marks in grade 12th i.e. 95/100. Since then I became proficient in math and started loving the subject.
Skill and interest are interdependent. Develop any one and you get other.
Second lesson,
Your passion never dies. Look I am here, writing about life and not about mathematics!
https://hemantpandeyblog.com/2017/10/21/how-can-i-concentrate-on-studies-2/