Do you realize too often you focus on your past disappointments? Why? Instead of becoming angry or resentful, now is when you can focus your thoughts and actions on what you can learn from them.
Understand you are not able to change what was but you can change what will be. How? Now is when you are able to act and are positioned to truly make a difference. Now is when you start to live.
Beginning today your life may have fallen short of your expectations but it does not have to hold you back. Why? Now is when you begin to make use of all you have and reach towards the best your life offers.