Believing in yourself is the greatest and fastest manure one need for growth in life
It's a boost that will help you morally when you're down. Think of it everyday and not only during the times that when you're down.
We all have our own talents that are unique to each of us. And it will help us grow and deal with everyday life since today emotional problems are giving us more problem as it takes ourselves down.
But just tell yourself and boost your confidence that you believe everything you do for the sake of betterment.