Always put in your very best in everything you do. It may get difficult if the difference is not seen but with subsequent repetition, it yields great reward. The ones who win are not those who quit because they failed but those who reprepared, enforce hard work, learn from past failures and install necessary conditions to get rid of reccurence.
Most of all, you have to love what you're doing.
Get inspired, get passionate, get indomitible, get buckled up and go for a heck ride.