This is going off-topic a bit, but I want to reiterate something that both @Eric_Moser and @hustlertwo give out as their most important advise: Writing is the only way to actually improve your writing. Havenstone lays out the practical aspects of getting everything down in writing above, but from everything said here, I feel the following is very relevant here:
They both say this stuff better than I could, so it is worth repeating here: write, and then write some more.
