What I learned from John Cleese's Autobiography, So Anyway...
Everything in your life can be laughed at
In Monthy Python's Search for the holy grail, the "black beast of Aaargh" is a bunny. One of Cleese's first memories is being bitten by a bunny. Coincidence? I think not.
Conflict breads creativity and originality
"The creative impulse is sparked by the need to reconcile contrasting views of the world."
Comparison will kill you
If you only compare yourself and your performance against perfection, you'll give up before you start. The best way to beat this is with strong curiosity, and a love of learning.
Panic can be your friend
John Cleese's first rule of comedy: Get your panic in early Panic will help you focus and do the work that just needs to get done.
Your thoughts follow your mood (actions follow both)
John Cleese's first rule of comedy: "Anxiety produces anxious thoughts; sadness begets sad thoughts; anger, angry thoughts; so aim to be in a relaxed, playful mood when you try to be funny
Good Comedy may not be "original"
Some of the best sketches from Monty Python's later years were written and performed in many different versions over many years, and didn't start "perfect".
A good joke is about connecting things that shouldn't be
To "get" a joke requires a mental leap to connect two concepts. The tricky part is judging the width of the jump needed for the joke to be "got". You can't spoon feed, or make the gap too wide.