Remember—it'll pass
Whatever it is you're struggling with in your writing—it'll pass.
It's the nature of things.
Don't take it too seriously. It's just writing. It's not like someone is standing with a knife at your throat, is it? You'll figure it out.
YOU DON'T HAVE TO FIGURE IT OUT THIS VERY MOMENT.
Give yourself time. Do something for fun. Something silly. To forget your struggles.
I predict that in the middle of doing your silly thing you'll figure out your writing problem.
You'll come up with a perfect solution.