If you are going through a major writer's block, or any writer's block at all, do not try to write. As much as it may pain you not to write, you will just make your writer's block worse.
When I get writer's block I try to get over it by listening to music. Not just listening to it though, listening to the lyrics and the story it tells. I will also watch movies because they will spark imagination and give me ideas.
If none of those work, I also try to re-read my previous writing or chapters to see what I could write to flow with the story.
A lot of the time I will also get writer's block for one specific part, and if you struggle with that as well, then jot down where you want the chapter to go in order, and fill it in from there. Even if you skip parts and move to the next, it may help to fill in the blanks.
