“Every morning we are born again.What we do today is what matters most.” Buddha #quote
Being present and in this moment is the key to happiness. What happened yesterday, happened yesterday. If you wish to recreate yesterday then continue to focus on it, however if you wish to create a new, ie. be born again, then focus on finding the joy in the moment.
Be mindful of your thoughts and what you are doing in the present moment.
visualization is also key