Somehow I feel like I'm scamming people if I have someone ghost write it for me or that I would be putting out a piece of junk product. If I have my own method of doing something or if I want to talk about my personal experience on something, shouldn't I write it?
Writing it yourself is the best choice if it is your personal story. And as a first time writer, it would be a learning experience too. But once you have tested the "publishing" waters, getting hired help is an option worth considering. If you are clear about what sort of writing you want and select your contractor well, there is much less risk of getting a "junk product" as you mention