If you want to have the time of your life, change how you use the time in your life.
The key to happiness is being happy with who you are and enjoying the life you are living.
The only real difficulty with becoming disciplined is when you buy into the notion that happiness comes at the price of sacrifice. The reality is this: Discipline becomes freedom when you are doing what you love.
Life is so fleeting. I am so busy enjoying it that I have no time to get angry.