Confused

Assalam.o.Alaikum dear all friends. Hope so you all will be fine and enjoying your life very well. I am still confused what was my mistake?😂😂 Childhood life is so good we are unaware from so many things and if we try to understand these things we are unable to comprehend those things. But after sometime we starts to pick up things and a time comes when are in the winners list. Never lose hope just work hard for your goal. I always get hesitated in math subject when I was in matriculation. But in the test I always get highest marks because I always do work with full attention. Math is not my favorite subject but I have a good knowledge about it. I am medical student but we have to how know about every aspect of life. Childhood memories are never forgotten and these remains with us throughout the life. So create your memories in your life and always step up. Try to understand things instead of getting tension. Always be happy dear all friends.