Success can mean the sum of small efforts repeated during our day to day life.
Who else but ourselves to know the value of our efforts, however small they may be, they add value to our lives, and without realizing it, when all those small sacrifices add up they can make us achieve great things.
The value of the little things should not be just for the sake of getting prizes for our lives, but we can do little things that add up to social welfare for other people who also deserve it.
This is one of the many reasons why we should not underestimate the little things we do, there are times when that little effort ends up being the big push to achieve success.
Challenges make our life more interesting, so overcoming them will make life more meaningful in relation to our achievements. Challenges should not be a problem, the problem should be not overcoming them, once we overcome them the battle is almost won.