Do not ignore the mistakes you have made. Each one is a life lesson.
Your time is limited, so don't waste it living someone else's life. Do not get caught up in life with the consequences of someone else's thoughts. Don't let the noise of other people's opinions stop you from hearing your own heart. And most importantly, have the courage to follow your heart and intuition.
Sometimes life hits you in the head with a brick. Do not lose your faith.
The people who will change the world are those who are crazy enough to think they can change it.