"For if a man think himself to be something when he is nothing, he deceiveth himself. But let every man prove his own work, & then shall he have rejoicing in himself alone, & not in another. For every man shall bear his own burden." Galatians 6:3-5
In short, know thyself. Know what you are capable of and put foot to ass towards success! Handle your business & don't expect someone to do it for you.