Hello, I own a service business that serves 7+ million people. I've been in business for about a year and half and doing okay. I'm ranking page one for pretty much all my keywords but only ranking first for one keyword. My other keywords are between 3-7. I have always hired out my work, but I'm at the point where I would like to do it myself. I have very little knowledge about SEO However, with this in mind if I take it into my own hands, will I be taking a risk at all in regards to messing up? How would I go about on working on my keywords to get them ranked up to first?