Then write.
There are no special skills needed.
No special education you must achieve.
Every one writes differently.
There are no set ways of doing it.
The problem that I have been asked about the most is how to get what's floating around in the brain to paper. That initiated a book currently titled Grey Matter to Pulp. The creation of this work has been slow going.
The most beneficial thing I can say at this point is just jot it down, the rest works its self out.
You will find your preferred way of writing.
Practice, practice, practice. The more you write, the easier it comes!