You will hear people say that that they would have an apology rather than permission. Be brave. Take risks. Nothing can substitute experience. We all go through life with blinders on where we are scared to death to try anything new. What if I fail? What if she/he never calls me again? This can be worrisome to your life, and worry is a cause of cancer. Most people stay serious and over calculated their whole lives. Sometimes you need to relax and just go with the flow. If you don't drop your guard, then you never know what you could be experiencing. Many people are so terrified what other people think that they will never really go after the things that they want.
Once you open yourself up and all yourself to start seeking things then you will be flooded with experiences. No, everything will not be a positive experience. However, the life experiences that you will be gain are worth the positive and negative attributes. Don't worry about things that can't affect you right now, and look toward learning something from these experiences. As long as you learn something then there isn't a thing as a negative experience. Besides you never know what you can really live through until you actually experience it.
The bottom line of this quote is to live experiences of your life, and don't let your fears get into your way. If you just open your mind, and have confidence in yourself, then you will be able to enjoy new aspects of your guys that you never thought possible.