On a simpler side, I once knew a hacker who got through many of his college years by loading gift cards to stores and restaurants with artificial value. Pretty much programming the gift cards so that they seemed to be loaded with a considerable out of money and using them. He eventually got caught, but you can leave that part out of your book. ;-)
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 UpWork, Fiverr, Guru, Freelancer.com, or PeoplePerHour. Sign up, build your profile, upload some samples of your work and start making extra money by doing small freelance jobs.