There are many ways to get people onto your list. Lead magnets are one such resource. For example, you can build ebooks, checklists and cheat sheets. But you can also do content upgrades, such as PDF versions of an article with added resources in them, four-part video training series, and more. Think about your audience and what you can offer them to better serve them, then treat them with some respect and you'll eventually reap the rewards.
Starting your own business is a good thing but getting it to run and become profitable can difficult and challenging. I have a mobile app in both Googlestore and Itunes, and am struggling to get downloads as I have not done enough marketing. Its a services marketplace app which will actually be competing with big and established names. I do not know how to market and promote the app, would need professional help and appreciate any advice.
Did you major in a subject like English, history, or math in college, or do exceptionally well on the SAT exam? Do you have patience with children? If so, you likely have what you need to tutor kids in particular subjects. Seek out parents or teachers and let them know that you tutor students in a certain subject, and offer materials for them to share, and phone calls will often trickle in. You can get going locally or expand across the country by offering to tutor online.
As someone who's been immersed in a number of online industries for quite some time, I know a thing or two about what it takes to succeed in this arena. However, just like you, I started at ground zero with little knowledge, but a great deal of passion. What I learned along the way were some invaluable lessons from failure that hurt at the time, but helped immensely in the grand scheme of things.