What Challenges do

You jump a two feet wall daily with ease as do many others

I  increase the height of wall by ¼ th of foot. You will still be able to jump it with some difficulty. Few days later you will be jumping this wall with ease

I keep  increasing the height of wall slowly and you are repeating the process

Few months later, you are jumping three and a half foot wall with ease

Had I increased the height of wall by one and half foot on first day itself, what would have happened ?

Challenges motivate you to excel
But let us do it step by step