Copywriting is one skill that anyone with the will to learn it, can actually become an expert in it. This type of writing is not easy to do even though reading a world class sales letter looks easy to write. If you could only read one book on copywriting, make it an excellent book on the principles because knowing how to write using that knowledge can serve you well.
Each copywriter has to deal with his or her own conscience, and there is a lot that can be said on the subject of ethics. Each of us has to decide our own path, but just remember you may have regrets if you write copy that is intentionally misleading. The prospects going through your copy trust you to give them a viable solution that is worth spending on. We must distinguish between writing for yourself and others, because most clients will not allow you to tell outright lies in the copy they are buying. Writing copy that keeps the hype to a minimum will usually be best, but it really depends on your audience.
Learning how to divorce any negative feelings from what you write is important, otherwise those feelings will come through in your writing. Avoid trying to take overt advantage of people because many will probably see that unless they are really very new. There is really a lot that goes into whether or not someone is going to trust what you say. The copy needs to effectively communicate what the product will give to the reader and customer.
Also, find a copywriting partner who will help you get the most out of your copy, by simply being there for you when you need support. But honestly, you may discover that the better writers will not want to get involved with teaching you for free. You can still work and network with other writers, but you will do yourself a bigger favor by getting used to working alone. As always, there is nothing wrong with testing it out, and if you find it is not for you, then the fix is easy. Finally, a good copywriter is sure of his purpose and to whom he is writing for. If you know exactly who you are addressing through your copy, there's absolutely no way your readers will get confused. Yes, copywriting is a skill that takes a long time to be able to write very well. This will only be possible when you know your target audience like the back of your hand, and your words are specifically tailored towards them. After you get started with your education, take the time to learn the basics extremely well.