Experience. Whatever area you want to work in as a consultant, you must be able to show clients that you’re qualified to advise them. If there are organizations related to your field, make sure that you’re a member of them. Similarly, if you can take a course and become certified or registered in your field, do it and then add that to your credentials.
Re-selling web hosting will enable you to make money hosting your own client’s websites. Large hosting companies like HostGator allow you to white label their hosting services. You could start your own hosting business or, if you are a web designer, include hosting into your web design packages. And the best of it is the hosting companies take care of the hosting for you, so all you need to worry about is selling.
Remember that people aged under 18 are not legally considered adults and therefore cannot be held to a binding contract. This means they can be released from the obligations under them, such as agreeing to purchase goods or paying for them. You can attempt to limit this problem by refusing to do business with under-18s, though this can be difficult to enforce.