Why do exercises?

Piano exercises are important because like you get weight lifters and sports people who practice and train to get there self and there body to the best of there ability, mentaly and physicaly piano exercises are just as important because you need to strengthen your fingers to play quickly and powerfully and this will also give you self confidence. 

click here for hanon exercises

The link above will take you to a website where there are 20+ hanon exercises which will be helpfull to get your timeing right and strengthen your fingers