People who never fail are usually people who does not do much in life, they are the followers in society, not the leaders. You will also notice that they will be quick to criticize others. You need to learn from your mistakes, improve and try again.
You also need to use your success and focus on it to improve on areas where you might have failed.

The way in which a person handles failure shows that persons character. To turn failure into success is what makes the difference between being and wanting to be.

Think the Wright brothers got it right the first time when they flew in 1903? NOOOOO before that they failed many times. People laughed at them, but they kept going!