One of the most important internet marketing strategies is to develop every customer's lifetime value. At least 36 percent of people who have purchased from you once will buy from you again if you follow up with them. Closing that first sale is by far the most difficult part -- not to mention the most expensive. So use back-end selling and upselling to get them to buy again:
Upwork: This website offers a great marketplace for selling just about any professional service. You don't need a merchant account, website of your own or anything else for that matter. All you need to do is be able to provide a high-quality service at a reasonable price. But be informed, you will have to compete with many others that are constantly bidding on open jobs.
There will always be someone who will do what you can do for cheaper. There will always be someone who does what you can do better than you can, at some point or another. The idea is that you can create a product, or market yourself, with the backing of an idea or concept that makes you stand out form the rest. People will buy what works as a general rule. We look for solutions. However if you have something that people can get behind, a reason as to why they should use you for a service or buy your product, then you can market yourself for whatever you want and people will be much more obliged to pay premium prices.
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.