I have a process for writer's block. I sit and just start writing (not typing.) When I get to a word that I wonder about, I take that word and start exploring it, and then when I use another word that causes me to stop, I latch on to it and explore all sorts of meanings, and just keep going. It brings so much light to my mental process, and I find the story just needed for me to loosen up a little. If we have created our characters in true fashion, we almost have to let go of them and trust them to do what they need to do... loosen up. It works every time.