Make a list or free write or sketch about all the things you would definitely say or do or create if there would be absolutely zero unpleasant consequences nor criticism for doing so. Nobody would be mad at you; nobody would get hurt.
Next, list out all the reasons (real or imagined) that stop you from doing it/writing it/creating it anyway.
Reconcile the lists to see which is bigger: the potential consequences or the pain of not doing that thing you really want to do?