As an author, writer's block is the worst! People say that there is no such thing, but trust me there is. I find when I get stuck the best thing to do is to write something else. It is more or less a lack of inspiration. I find joy in writing over on other platforms until I can get my muse to talk to me again. Once she does (she, of course!) I'll get ideas while I'm brushing my teeth or late at night. I keep my notebook or phone handy so that I can jot down my thoughts quickly. Other things that help me include going for a walk or a drive, observing nature ( I was once inspired by a group of army ants) or even watching a sunset. Changing your environment, really makes a difference.