I was a topper in my school and felt a lot of failure before and after that.
Maybe I can share my experience with you.
There are certain common reasons which can make anyone fail in their life:
- Not able to handle pressure
- Not have the courage to take the risk
- Fear of failure
- Not having a backup plan
- Lack of knowledge
- Giving Up
And many more…….
So these are the common elements that can make anyone a failure in their life.
Now it depends on the situation that you are asking for. For example, if you are asking for school exams then the reasons may become different, if you are asking for business, then also reasons may be different, or if you are asking for life then reasons may become different.
Hope you like my answer