It's what you learn after you know it all that counts. A man is a success if he gets up in the morning and goes to bed at night and in between does what he wants to do. I've met a few people who had to change their jobs in order to change their lives, but I've met many more people who merely had to change their motive to service in order to change their lives. You must promise to achieve and never entertain the thoughts of making excuses or shunning responsibility. He who limps is still walking.
Most men succeed because they are determined to.