You'll experience personal growth on the road to success. All growth means change and change involves risk. You grow because you struggle, learn and overcome your obstacles.
What happens to you is not as important as how you react to what happens. Everything you'll experience "good or bad" has value.
Difficulties in life are the things that show you what you are. Trouble is the common denominator of living. It's the great equalizer of life.
Only when you are no longer afraid will you begin to live.