When you woke today, times had changed. Yesterday had past, tomorrow had not yet arrived. Realize it or not, you only have now! Right now is the time for action, or perhaps not. Right now is the time to rest or the time to play, to work, to relax, stress, be anxious, be still, be calm, be happy.
Make a decision to be happy.
Make a decision to take action. That action could be to play, to rest, to do nothing. Make it your action.
Make the decision and take action.