A happiness tip inspired by Scottish Hammer throwing:
To start: hang on to get the hammer while you exert a large amount of energy set it into motion ( so true about many things in life) .
While the hammer is spinning around you, your body has to stay loose yet in the proper form (stress management under pressure!),
and the mind has to stay focused on the task at hand.
Eventually, you have to let that big hammer go when the timing is right.
Happiness tip: there is a time for everything, and in a proper order, and especially a time to let go.