Before I answer this question, let me first make it clear that there’s a difference between earning money and leading a lifestyle. While you do need higher studies and graduation to afford a comfortable life, it’s not mandatory to complete graduation to earn money. In fact, many students work part-time while studying for their graduation to fund their education.
Writing Articles:
Students with good writing skills and knowledge of grammar can make decent money writing articles, stories or tutorials. Knowing people or organizations who can offer you work is a hurdle initially, however, once you settle in, you will keep getting references and your client network will grow.
Give Tuition:
There is always a dearth of good teachers for young minds. Kids can be inquisitive and fickle-minded in equal measures so providing tuitions to children and young students can help an intelligent person earn well enough. Today, there are many online websites that act like bridging interfaces between teachers and students so that a person without a physical training room can still educate people online.
Make Designs:
Graphical designers make a whole lot of money. They face the same issues as freelancer writers, which is the initial patronage. However, once people start knowing their skills, freelancer graphical designers can make even more money than those who are employees in some company. They can start by learning HTML (Hyper Text Markup Language, CSS (Cascading Style Sheet) and bootstrap for making designs. Photoshop and jQuery also help in making wonderful designs.
Other Activities:
In addition to above activities, there are also plenty of data entry jobs, and clicking on ads, websites, and links. These jobs are clerical in nature that’s why people with limited options go for these jobs in order to keep themselves afloat.
Animals 
Beauty 
Careers 
Cinema 