Take it from someone who writes for a living: Just start writing. Your first idea is probably not going to be a winner, and that’s why you should get it out of the way as soon as possible. Write out all of the ideas you have for your copy, no matter how silly– you may be surprised at what gems come out of a brainstorming session where you don’t edit or criticize your creativity.
It’s that, for most of us, the idea of selling something is already unnerving. Who wants to come across as a slimy salesperson? Plus, with writing, there’s a delay between copy being created and the other person reading it. You’re vulnerable without the luxury of self-correcting based on that person’s body language. You have to release your words into the ether and hope that someone receives it and acts upon it.
My big mistake was quoting based on hours at first — because I’m really fast, I’d quote a ridiculously low rate. Now I quote based on the value of what people will get. Because I’ve been in online business for about 6 years, I bring a ton of experience and strategy as well as a way with words. :) They’re happy, I’m happy, and my old “friends” now have to stand in line to book me. Bwahahahah!