If you’re trying to think something through write it down. Writing is thinking.
Trying to crack an idea open. Start writing.
Trying to understand a concept better. Start writing.
Trying to figure out what you should be doing. Start writing.
Put your thoughts down. They don’t have to be organised. As you write you’ll figure things out. If needs be you can write a more organised draft when you’re done.
If you have a problem, write through it.