If you are only looking for a part time income, I suggest working online. Of course, I don't advocate foregoing a job or leaving the one you have until you are comfortable with the income you make from working at home. In fact, the likelihood that you will make a full time living online is slim. However, money that you can earn in your spare time can pay your car payment or buy a month of groceries. There are many people selling courses on how to make money. I would start with as much free information as possible. It is out there. If you are considering buying a course, look up reviews of the product on The Warrior Forum. You will hear the best advice there. Keep in mind, though, that some reviews are masked sales pitches.
Choose a Business Model
There are many different online business models. Each requires a lengthy explanation. A few that are worthwhile are: blogging, affiliate marketing, telecommuting, customer service at home, doing micro jobs, selling on EBay or Amazon and running an online retail store. Basically, you are either selling something for someone else, or you are selling something for your own business. If you are not selling, you are providing a service; people provide services on websites like Fiverr.
I sell for other businesses. This is called affiliate marketing. Most people, who are affiliates, promote companies that pay per action, such as per sale or per lead. These commissions are high but are a little harder to convert, as you, the affiliate, need the visitor to actually buy something, or sign up for something. Another type of affiliate campaign pays you per click, such as with Google AdSense. Since affiliate marketing is easy to start, I will expand on this a little.
You can find affiliate offers on websites such as Commission Junction, Muncheye, Commission Junction, ShareASale Amazon, EBay, and Sunfrog T Shirts. Another way to find affiliate programs is to look on the website of your favorite product and scroll down to see if they have a link to an affiliate program. It is ideal to promote something that you use or have used and that you really like. After you sign up to become an affiliate, you can promote your link on Facebook, YouTube, Twitter, Instagram, Pinterest and on your own website.
If you want to work online, start slowly. Educate yourself on internet marketing. See what others are saying about the program in which you have an interest. If you ever need help with internet marketing, just use the Contact Form on the contact page.
Below is an example of some affiliate programs at ShareASale: