_Comedy is a lot about change, not coinage type change but change that affects us and at times, our coinage, bam! See what I did there? Sometimes the change is subtle and often in the form of annoyances that are unnoticed for the most part until a comedian comes along, sheds light on it and well, changes things by making an audience laugh about it.
Sometimes change is sudden and in the form of a whack upside the head, an accident involving a banana peel, or far worse...a divorce, illness, a stress filled getting pulled over by the cops type thing. Comedy is often funniest when it's change that everybody could see coming but you couldn't due to a failing or distraction on your part.
Sooooo,... (Alert: Coaching ahead!)... when you're writing comedy and feel you're blocked, stop writing comedy and start writing about all the changes that are going on and have gone on in your life from the very first day you can remember to present day. Everything brings changes. Things you buy brings changes, a new car or furniture or new apt or planning a party, taking a test, a new relationship.... you can go on forever. Write about change and the funny will come.
_That'd be good for a change huh?! bam! SWIDT?