Paid traffic, such as PPC or banner advertising, is usually more controllable and scalable. If what you're doing is working, you can spend more to grow your traffic. It also has the advantage of being able to start very quickly, if not immediately. The main disadvantage of paid traffic is that it can be quite expensive and requires a lot of supervision to avoid losing money. Paid advertising platforms such as Google AdWords can also have strict requirements regarding advertisers and ads, so be sure to pay close attention to all rules and warnings.
It can take time to build up your personal freelance business. Yet, there is more demand than ever for freelancers. So, if you want to kick start making money online through freelancing you can join one of the top freelance networks, such as Flexjobs, SolidGigs, Contena, Upwork, Fiverr, or PeoplePerHour. Sign up, build your profile, upload some samples of your work and start making extra money by doing small freelance jobs.