Very important point from Pro Copy Tips, at Why good copy goes bad: are you stupid or just ignorant? Here it is:
One of the worst mistakes you can make as a copywriter is to assume your job is about writing.
It's true, I'm sad to say.
In fundraising, you'll do better if you're a fundraiser who writes well than if you're a writer who's stuck doing fundraising.
Because real-world professional fundraising writing is not about finding your voice or baring your innermost soul. It's about knowing a lot of things about donors, how to motivate them, what a good offer is, and a dozen other details -- and being able to write all that in clean, clear, vivid prose.
If you want to be a "pure" writer -- a Sylvia Plath or a James Joyce whose writing is a form of art -- you're most likely going to live in poverty and obscurity.
If you want to make a difference -- and a paycheck -- your writing talent is merely one of many tools in a well-stocked toolbox.
This is often the first and hardest hurdle for young aspiring professional writers, in fundraising or any other writing profession. The quicker you get past it, the more happy and successful you'll be.
