Yesterday was either a good day or a bad day. Yesterday either was a success or a failure. Yesterday was full of all kinds of actions and circumstances and behaviors and we consciously and subconsciously evaluate those moments as success or failures or "good" or "bad". What is our response? If they were good/successes, then we should use that positive as fuel and as momentum to have more success and good things happen today. If they were failures/bad, then today is a new day. Learn and move on. We have choice.